Slashdot Mirror


83-Year-Old Inventor Wins $40,000 3D Printing Competition

harrymcc writes "The Desktop Factory Competition was a contest to create an open-source design for a low-cost machine capable of turning cheap plastic pellets into the filament used by 3D printers, with a prize of $40,000. The winner is being announced today — and he was born during the Hoover administration. I interviewed 83-year-old retiree Hugh Lyman — a proud member of the maker movement — for a story over at TIME.com. From the article: 'Lyman describes himself as an “undergraduate engineer” — he studied engineering from 1948-1953 at the University of Utah, but didn’t earn a degree. Though he holds eight patents, he says he’s “not educated enough to be able to do calculations of torque and so forth.” So implementing his contest entry “was trial and error. I tinkered with it and used common sense.”'"

146 comments

  1. Engineering isn't a secret club by Anonymous Coward · · Score: 5, Interesting

    I'm glad some people still attempt projects like these without engineering degrees.

    1. Re:Engineering isn't a secret club by amiga3D · · Score: 5, Funny

      If he used common sense then he's obviously not an engineer.

    2. Re:Engineering isn't a secret club by History's+Coming+To · · Score: 5, Interesting

      Even the most qualified engineers on the planet sometimes resort to "getting a bigger hammer", or trial and error. You know the Saturn V rocket? One of the biggest and most complex things ever made by humans? They had problems with the combustion plate, basically a big disc of metal that the fuel is sprayed through before igniting. The combustion kept becoming unstable to the point where it was an explosion rather than a burn, and they knew it was something to do with the pattern of holes. No amount of mathematics and computing "power" back then was enough to find a solution, so they took a bunch of plates and drilled holes in them at random until they found one that worked for long enough to launch the vehicle "safely".

      --
      Please consider this account deleted, I just can't be bothered with the spam anymore.
    3. Re:Engineering isn't a secret club by Anonymous Coward · · Score: 5, Interesting

      If he used common sense then he's obviously not an engineer.

      That's right. If he were an engineer, he would have thought of all the reasons why it couldn't be done. Whereas by being "uneducated" he was too ignorant to know that it couldn't be done.

      Years ago, my dad worked for a businessman that only had a high school diploma but an idea for a medical device. The engineers said it couldn't be done. The biz guy told them to STFU or get out . The engineers finally figured it out by trial and error because what they were doing was never taught in engineering schools.

      The biz guy made tens of millions. The engineers got their $25K/year and laid off after the project was done - this was back in the 70s.

      I can't remember the guy's name.

    4. Re:Engineering isn't a secret club by Registered+Coward+v2 · · Score: 4, Insightful

      If he used common sense then he's obviously not a(n) design engineer.

      There fixed it for you. He sounds like a real field engineer; someone who knows where to apply the 10 lb monkey wrench to fix the problem.

      --
      I'm a consultant - I convert gibberish into cash-flow.
    5. Re:Engineering isn't a secret club by Anonymous Coward · · Score: 0

      Trial and error is the only resource when you are creating something new and not tested by anyone else.

    6. Re:Engineering isn't a secret club by Tokolosh · · Score: 1

      You are describing the difference between a scientist and an engineer.

      Nowadays, people who write computer programs call themselves engineers, but then I see optometrists calling themselves "doctor". Who knows where it will end.

      --
      Prove anything by multiplying Huge Number times Tiny Number
    7. Re:Engineering isn't a secret club by Anonymous Coward · · Score: 0

      Only if you define "something new" as that set of things where only trial and error works.

    8. Re:Engineering isn't a secret club by Anonymous Coward · · Score: 0

      You care a wrench under 50 lbs? What kind of koopas are you trying to get with that?

    9. Re:Engineering isn't a secret club by MightyYar · · Score: 4, Interesting

      In the US, optometrists have a doctorate. Ophthalmologists go to medical school. Opticians do neither - usually an associates degree or less is required.

      --
      W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
    10. Re:Engineering isn't a secret club by Smerta · · Score: 2

      Engineering isn't a secret club, but it is a discipline.

      Like you, I'm also very happy to see non-engineers tinker with things like this, but I'm glad that engineers are designing airplanes, implantable cardiac devices, and elevator controls.

      There is a big difference between a "one off" hobby endeavor and a safety-critical product that has to be manufactured and sold.

      BTW, I've never met an engineer who believes that his/her discipline is some kind of "secret club"... Serious question: are you a non-engineer who has been spurned by some elitist engineer or something? I just find the title of the post a bit angry. Tinkerers have been around forever; the technology is constantly changing and making innovation easier and more accessible, which I see as a good thing.

    11. Re:Engineering isn't a secret club by fredprado · · Score: 1

      Some do have doctorates, usually when they opt for the academic career, but it is not necessary to have one to be an optometrist.

    12. Re:Engineering isn't a secret club by Anonymous Coward · · Score: 1

      Engineering is part science and part art. I was fortunate to have engineering professors who had spent considerable time in the private sector before returning to academia. A case in point. Early in his career, one of my professors was working at General Motors. He and several other young engineers were assigned the task of designing a new torque converter. After many weeks of fluid mechanics calculations (on slide-rules), they presented their prototype. After several test runs, the senior engineer took the prototype, disassembled it and took a file and hammer to the fins. My future professor and his young colleagues were stupefied as the reassembled torque converter performed better. That, our wizened professor told us, was the "Art of Engineering". It cannot be learned from books or taught in schooled. It must be earned in the classroom of experience. I do not remember all of the mechanics I learned in his class, but I will never forget that.

    13. Re:Engineering isn't a secret club by MightyYar · · Score: 2

      I just looked it up again, and I think you are mistaken. In the US, all optometrists must get their Doctor of Optometry (O.D. - Oculus Doctor).

      In other countries, the situation is different.

      --
      W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
    14. Re:Engineering isn't a secret club by 8Complex · · Score: 1

      An engineering degree is only good for checking your work. Mechanical design is purely a function of creativity, experience, and problem-solving.

      Example: Any Joe Blow can design a clothes dryer (heater, blower, rotating drum). It takes an engineer to size that motor properly so that it dies 4 days after your warranty is up.

    15. Re:Engineering isn't a secret club by Opportunist · · Score: 3, Interesting

      Reminds me of that poster on my ex-boss wall. "Aerodynamics say the bumblebee cannot fly. The bumblebee doesn't know and flies instead".

      He, too, wasn't someone with a pretty degree. But what he had was a lot of knowledge of human nature. He looked at an applicant and within a few minutes it was stay or go. No matter the degree, he did take a look at your previous experience, though, but even that wasn't too important, he actually went more by his "gut feeling" as he called it. I don't know what exactly it was, but it allowed him to assemble one of the best and inventive groups I was ever part of.

      Odd fellow. Later he once told me one of the reasons he hired me was that I appeared in jeans and pullover for the interview, since he believed when a tech guy tries to hide in a suit he doesn't believe enough in his own skills to get him the job. And I have to admit, I made that part of my own interview strategy. 'cause he's right, odd as it may seem. If a guy shows up for an interview in everyday clothes, it usually means that he's quite confident that his skills can land him the job despite his attire.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    16. Re:Engineering isn't a secret club by Opportunist · · Score: 1

      No, but a member of a dying breed.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    17. Re:Engineering isn't a secret club by Opportunist · · Score: 2

      At Apple store employees calling themselves "genius"?

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    18. Re:Engineering isn't a secret club by HornWumpus · · Score: 1

      Traditionally, engineering schools never employed professors without significant industry experience. Engineering _has_ to match up with reality. Navel gazers can go on about everything being socially constructed. Engineers can't afford such sloppy thinking.

      Your experience is about the same as mine. There were of course profs with stronger theoretical background, but all had been around the block a few times.

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
    19. Re:Engineering isn't a secret club by ArhcAngel · · Score: 4, Funny

      Reminds me of a poster we had in one of the labs I worked at.

      There comes a time in the life of every project when you must shoot the engineers and begin production!

      --
      "A person is smart. People are dumb, panicky dangerous animals and you know it." - K
    20. Re:Engineering isn't a secret club by Anonymous Coward · · Score: 0

      Heyyyyyyyyyyyyyyyyy!!!!!!!!!!!!!!
      I'm an engineer

    21. Re:Engineering isn't a secret club by cellocgw · · Score: 3, Interesting

      Reminds me of that poster on my ex-boss wall. "Aerodynamics say the bumblebee cannot fly. The bumblebee doesn't know and flies instead".

      Sadly for your ex-boss and anti-scientists everywhere, the aerodynamicists (be they scientists or engineers) were quite right: the bumble bee could not fly if one assumed rigid wings. Their research led to greater understanding of a rather interesting organic control system which produces significant lift.

      --
      https://app.box.com/WitthoftResume Code: https://github.com/cellocgw
    22. Re:Engineering isn't a secret club by jamiesan · · Score: 2

      Spiderman will kick his butt though.

    23. Re:Engineering isn't a secret club by davester666 · · Score: 1

      Bee farts?

      --
      Sleep your way to a whiter smile...date a dentist!
    24. Re:Engineering isn't a secret club by gutnor · · Score: 1

      The biz guy made tens of millions. The engineers got their $25K/year and laid off after the project was done - this was back in the 70s.

      Wow, seems like a nice guy. Seems like those asshole bosses that never understand what you do and make you work in McGuyver condition (not enough server, no license to the tool you need, no test, develop on prod, ...) but blame you you when you fail and even blame you if by luck you succeed.

    25. Re:Engineering isn't a secret club by cellocgw · · Score: 4, Interesting

      No, you missed the point entirely. Science never thought it was impossible. Science quite correctly proved flight with rigid wings was impossible. Science went on to conclude, correctly, that since bumblebees fly, their wings aren't rigid.
      Please stop promulgating that teabagger meme that "scientists [have] an established mindset." As a very funny British comedian once said, "of course science doesn't have all the answers. If it did, we'd be done."

      --
      https://app.box.com/WitthoftResume Code: https://github.com/cellocgw
    26. Re:Engineering isn't a secret club by Anonymous Coward · · Score: 0

      Seems like those asshole bosses that never understand what you do and make you work in McGuyver condition (not enough server, no license to the tool you need, no test, develop on prod, ...) but blame you you when you fail and even blame you if by luck you succeed.

      I believe what you're trying to say is that the boss accepted risk and was rewarded for it and the engineers did not accept any risk and so were not rewarded for it.

    27. Re:Engineering isn't a secret club by ethanms · · Score: 3, Insightful

      Wow, seems like a nice guy. Seems like those asshole bosses that never understand what you do and make you work in McGuyver condition (not enough server, no license to the tool you need, no test, develop on prod, ...) but blame you you when you fail and even blame you if by luck you succeed.

      Haven't you heard? --

      - Success is due to leadership (i.e. executives)

      - Failure is due to execution (i.e. engineers and to a lesser degree middle managers / marketing / sometimes sales).

    28. Re:Engineering isn't a secret club by gomiam · · Score: 2

      The point is that science THOUGHT it is impossible

      The point is that a scientist doing back-of-the-evelope calculations from wrong premises concluded that the bumblebee could not fly, and someone decided that he accounted for all "science" ;)

    29. Re:Engineering isn't a secret club by tibman · · Score: 1

      I think you changed the argument when you made engineers into scientists. He was trying to say that if you tried to get engineers to build a flying bumblebee-plane the engineers could only have used trial and error to figure it out. There was no existing solution for the problem they could template from.

      --
      http://soylentnews.org/~tibman
    30. Re:Engineering isn't a secret club by postglock · · Score: 1

      Being a physician != having a doctorate.

    31. Re:Engineering isn't a secret club by HornWumpus · · Score: 2

      Nonsense. Engineers have the bumble bee itself to template from.

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
    32. Re:Engineering isn't a secret club by MightyYar · · Score: 1

      Optometrists are not physicians, so they get a doctorate (specifically a DO). Ophthalmologists are physicians, so they do not (unless they go for their PhD-MD). Opticians just go to technical school, and do not need even a bachelor's degree.

      Note this is all in the US - I don't know what country you are in.

      --
      W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
    33. Re:Engineering isn't a secret club by postglock · · Score: 1

      Ah okay. Apologies, I misunderstood. I thought you meant to say that optometrists required the equivalent of a Bachelor of Medicine. I'm from Australia, where only a bachelor degree is required.

    34. Re:Engineering isn't a secret club by postglock · · Score: 1

      And I probably should have read your original post more thoroughly, since you were obviously making that point in the first place!

    35. Re:Engineering isn't a secret club by recharged95 · · Score: 2

      He took some engineering courses in college, so that he has the amplitude to complete an engineering-required task, much like an engineer [by training] trying to develop a DSP s/w driver on Linux (he's not a computer scientist afterall).

      To most non-engineers, they only know one method of engineering that's easy to understand: trial and error. That is something all engineers take for granted and something that makes engineering intuitive...and why it is a discipline: that anyone can learn it.

    36. Re:Engineering isn't a secret club by Sigg3.net · · Score: 1

      But if you're an ornithologist, you just need tits.

    37. Re:Engineering isn't a secret club by Opportunist · · Score: 1

      All true. But as you can see, it managed to somehow get into popular culture and popular conscience. Enough even that a poster exists that perpetuates the "fact". How many other "facts" are out there that started from false premises and wrong expectations?

      What I wanted to express is that we often accept something as true or false because someone we deemed important made a mistake, until someone comes along and just tries it.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    38. Re:Engineering isn't a secret club by gomiam · · Score: 1

      Many wrong ideas have entered popular culture. So what? That only means that popular culture doesn't care much about truth or correctness. The same way the spinach iron content myth has been busted (as early as 21 years after the initial wrong experiment) and has even begotten a new myth (the decimal point myth) to explain busting the old one. And yet popular culture doesn't care about it that much. So don't try to use popular culture as a fact checker.

    39. Re:Engineering isn't a secret club by Hognoxious · · Score: 1

      Aerodynamics say the bumblebee cannot fly.

      What's an aerodynamic?

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    40. Re:Engineering isn't a secret club by Anonymous Coward · · Score: 0

      Engineering is a state of mind.

  2. Giant worms? by TheSunborn · · Score: 0

    Am I the only one who think about giant worms each time i hear about the "Maker movement" ?

    1. Re:Giant worms? by h4rr4r · · Score: 0

      So you think we should drown him to extract the water of life?

      Seems kinda like a harsh way out for an 83 year old.

    2. Re:Giant worms? by Anonymous Coward · · Score: 0

      the spice must FLOW

  3. He's not the onlyh one by Anonymous Coward · · Score: 0

    >he studied engineering from 1948-1953 at the University of Utah, but didn’t earn a degree.

    It's still the same. Graduation rates for the engineering department are very low. For the school as a whole, only 35% graduate in four years. People are throwing away money by going there.

    1. Re:He's not the onlyh one by h4rr4r · · Score: 0

      Or it is a very good school, and those who graduate are benefitting highly.

      Failing out people is something a university should do. If more than 50% of people can graduate in 4 years than it should be closed down as it is clearly not strenuous enough to deserve accreditation.

    2. Re:He's not the onlyh one by headhot · · Score: 1

      Just because you don't graduate as an engineer doesn't mean you dont graduate. The failed engineers at PSU frequently become the best business majors.

    3. Re:He's not the onlyh one by Overzeetop · · Score: 3, Insightful

      It depends on who you let in. When I attend Virginia Tech in the 80s they'd let just about anyone into the engineering program, but very few actually graduated with engineering degrees. Today a far higher percentage who enter graduate, but the admissions standards (for engineering, at least) are quite a bit higher.

      --
      Is it just my observation, or are there way too many stupid people in the world?
    4. Re:He's not the onlyh one by HornWumpus · · Score: 1

      Business comes after they flunk out of Comp Sci. CS was where they went after they flunked out of Engineering.

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
    5. Re:He's not the onlyh one by Opportunist · · Score: 1

      The university I went to has a "dropout" rate of close to 98%. Not (only) because they weed out like crazy, but because of its reputation, a lot of people get hired with quite a salary long before they have a chance to reach the end of their master's. So it's less a dropout, it's rather that people who are good and don't want to spend endless hours doing theoretic stuff have a pretty good chance to land a job even without.

      Especially in engineering fields you'll often see a lot of people hopping off before getting a degree. And to be blunt, I'd also rather hire someone with something to show me like a patent or at least some kind of product they built in their spare time than someone with a fancy sheet of paper for their office wall. And that's simply easier to achieve in a field like engineering than in those where you pretty much CANNOT do anything sensible in your field without first of all having a degree to show. I mean, who'd let a medical student perform some surgery?

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    6. Re:He's not the onlyh one by HornWumpus · · Score: 1

      who'd let a medical student perform some surgery?

      The local teaching hospital, of course.

      If forget the exact date. IIRC sometime in July. Never have a medical procedure during the month that the new residents start. Huge jump in screw-ups that month.

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
    7. Re:He's not the onlyh one by IndustrialComplex · · Score: 1

      Business comes after they flunk out of Comp Sci. CS was where they went after they flunked out of Engineering.

      Not at PSU. Computer Science at PSU was (is?) a controlled major with a minimum GPA. If you were failing in engineering, you weren't going to make the cut in Comp Sci either.

      EE didn't have a GPA minimum IIRC, if you made it past EE350 with a passing grade, you were going to be fine. (That class was the class you saved your late drop credits for)

      --
      Out of modpoints but really liked a post? 1BDkF6TtmmeZ3yqXbz9yhdYVqRYnwFoXDj
    8. Re:He's not the onlyh one by HornWumpus · · Score: 1

      Perhaps you had to take easy CS track courses for a semester or two before your GPA was good enough to formally be in CS.

      I knew a few failed EEs that went on to 3.5+GPAs in CS. They couldn't handle engineering math.

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
    9. Re:He's not the onlyh one by Tim_sama · · Score: 0

      As a CS major* at the U of U, 35% sounds about right. I'm no rockstar, but there is a definite divide between those who Get It, and those who don't. The professors are great, so if someone fails out of Engineering then I'd guess they don't belong there in the first place and just somehow managed to bluff their way through the pre-major courses.

      *Blah blah blah, CS isn't Engineering, etc.. At the U, it's in the School of Engineering, and from talking to other Engineering students, the difficulty is comparable to other programs in the SoE.

    10. Re:He's not the onlyh one by JazzLad · · Score: 1

      Many LDS people start at U of U (or another local college/university), then take off 2 years to serve a mission, then return to finish school - this is a very common practice.

      --
      "If you have nothing to hide, you have nothing to fear." - Every fascist, ever
    11. Re:He's not the onlyh one by Anonymous Coward · · Score: 0

      Sounds like your school's CS program was dumbed down or was a BIS degree in disguise. All maths taken for CS at my school were the same maths for those graduating with a formal Mathematics degree, not some Maths for Business Majors or Applied Mathematics where they are light on theory and proof (granted there was Discreet Mathematics, which was considered a math course taken by predominately CS majors, but only because the topic is of greater importance to the degree than to others, and again certainly not light on proof). Many CS majors dual-majored in Math simply because there was so little additional course load required.

    12. Re:He's not the onlyh one by jimbolauski · · Score: 1

      Perhaps you had to take easy CS track courses for a semester or two before your GPA was good enough to formally be in CS.

      I knew a few failed EEs that went on to 3.5+GPAs in CS. They couldn't handle engineering math.

      I don't know what courses were required for your CS department but ours were very heavy in math. Our CS courses were computational mathematics with a side of programming. Mr Maxwell probably tripped them up as long as they could handle linear algebra they could probably get by.

      --
      Knowledge = Power
      P= W/t
      t=Money
      Money = Work/Knowledge so the less you know the more you make
    13. Re:He's not the onlyh one by HornWumpus · · Score: 1

      They could get away with business calculus and obviously didn't get to diff-eq. They took a bunch of sideshow math classes but were weak on fundamentals. To their credit, more then a few recognized the weakness of the required curriculum and took real calculus. Some even took diff-eq.

      Linear algebra without diff-eq first is a joke of a course. Like statistics without calculus first. The best they could do was memorize and regurgitate.

      The math they took was tough stuff like set theory. I took one of their 'harder' math classes and aced it with very little effort. It was recommended to me as a GPA pad by my adviser, same as econ (a class that flunked out fully 20% of business majors).

      Control theory would have made them go cross-eyed. A senior year elective for them was assembler language, we (EEs) got that first semester, freshman year (assuming you weren't taking remedial classes, like intro to programming and pre-calculus.)

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
    14. Re:He's not the onlyh one by jimbolauski · · Score: 1

      They were not required to take diff-eq or real calculus, we were required to take those plus linear algebra, matrix theory, and an Advances Statistics Class. Looking at the currently required curriculum diff-eq, linear algebra, and the Advance Stats Class are all electives now. Our CS curriculum had the same base classes as the EE students, this was because the CS department moved from Arts and Science to Engineering and was grouped with the EE and Comp E. I'm shocked that those classes are not required any more but I work with EEs and Electro-Magnetics all day so my view might be skewed.

      --
      Knowledge = Power
      P= W/t
      t=Money
      Money = Work/Knowledge so the less you know the more you make
    15. Re:He's not the onlyh one by IndustrialComplex · · Score: 1

      I think you are correct, perhaps his school was different, but I remember many of the CS students at PSU would be dual-majoring in Math.

      However, PSU had the Comp Sci, Comp Eng, and Elec Eng degrees very tightly coupled with Math. My study group involved students from all three disciplines (though I didn't know any people taking math as their primary degree). But we all took the same basic courses, especially when it came to Math. And for Electrical Engineering/Computer Engineering I think the only difference between my degree and an EE degree was EE351 vs EE350. Everything else was CSE/EE courses. (Granted I tended towards the EE side of CompEng since I was more interested in sensors and robotics. But I ended up taking the senior capstone courses for both Comp Sci and Comp Eng just to prove to myself that I could. (All I needed my final semester was Senior Design Project so I filled the remaining time with the Comp Sci capstone, CSE477 (VLSI design), CSE472(embedded systems), and an emmersive environments course. Yeah I could have just taken the one course but I'm an engineer, that stuff is fun to me!)

      Looking at the current courses for a senior at PSU, I'm seeing a lot of this: CMPSC 451 (MATH 451),CMPSC 455 (MATH 455), CMPSC 467 (MATH 467). So as you can see, the comp sci courses at PSU are so heavily math focused that they actually can count for math credit.

      The point is as a Computer Engineering student at PSU, there is no way in hell that I would consider Computer Science as an alternative if I had trouble with engineering math, because if anything, computer science at PSU was even more math focused than engineering!

      --
      Out of modpoints but really liked a post? 1BDkF6TtmmeZ3yqXbz9yhdYVqRYnwFoXDj
  4. Trial & Error Works by Archangel+Michael · · Score: 5, Informative

    Often better than calculations. It works, because of the assumptions often needed to do calculations are wrong. I've seen a guy spend an inordinate amount of time doing calculations and what not, and then have things still not work. go back make more calculations and wash rinse repeat. He didn't understand the problem.

    Meanwhile an old timer looked and figured out the issue and had it fixed in about ten minutes.

    Granted, this is just a single example, and not every case is like this.

    --
    Agent K: A *person* is smart. People are dumb, stupid, panicky animals, and you know it.
    1. Re:Trial & Error Works by bickerdyke · · Score: 1

      We often made jokes about that even back at my university days (engineering).

      Engineers always spend lots of time for exact calculations, just to add a roughly estimated error margin that dwarves the exact calculation into insignifficance anyway. They calculate die diameter of a nylon thread needed to lift a brick to the 5th decimal, but in the end use a rope to lift it anyway!

      --
      bickerdyke
    2. Re:Trial & Error Works by Overzeetop · · Score: 4, Insightful

      I watched the jaw of a physicist hit the table in a design meeting where I claimed that I was confident in my engineering model to "single digit percent" errors. The director of engineering was pleased with the answer, and my friend asked me afterwards what I meant and how that could possibly be good. I told her that we only have a certain level of confidence in the materials and fabrication capability, and that the environmental loads were really just a guide - anything closer then 5-10% was probably wasting effort for no actual increase in performance.

      This is an appropriate place for this quote:

      "Structural engineering is the art of modeling materials we do not wholly understand into shapes we cannot precisely analyze so as to withstand forces we cannot properly assess in such a way that the public at large has no reason to suspect the extent of our ignorance." -Dr. A. R. Dykes

      --
      Is it just my observation, or are there way too many stupid people in the world?
    3. Re:Trial & Error Works by HornWumpus · · Score: 1

      Good Engineers understand significant digits/error margins and safety factors.

      They also understand that their own time is another resource that should be optimized.

      What you describe sounds more like an Engineering student.

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
    4. Re:Trial & Error Works by Fnord666 · · Score: 3, Funny

      Trial & Error Works Often better than calculations.

      Unless you're designing parachutes.

      --
      'The tyrant will always find pretext for his tyranny.' - Aesop's Fables
    5. Re:Trial & Error Works by Anonymous Coward · · Score: 0

      [Trial & Error Works Often better than calculations...] Unless you're designing parachutes.

      I know you were making a joke, but I think trial and error would work pretty well if you dropped inert weights with parachutes and some sort of mechanism to open the parachute.

      Once the human testing starts, yeah, trial and error bad.

      But parachutes were invented before supercomputers, and I'll bet trial and error testing with inert weights played a role in developing usable parachutes.

    6. Re:Trial & Error Works by isorox · · Score: 1

      Trial & Error Works Often better than calculations.

      Unless you're designing parachutes.

      Depends who's testing them

  5. Common sense? by Anonymous Coward · · Score: 0

    "That's old school!"

    "Yep. Ain't no school like the old school."

  6. Trial & Error Works When You Can Afford Errors by trout007 · · Score: 3, Insightful

    You don't want bridges, buildings, or airplanes designed by trial an error. The errors cost too much.

    --
    I love Jesus, except for his foreign policy.
  7. Not sure I understand. by serviscope_minor · · Score: 2

    I understand his invention.

    What I don't understand is how plastic filament is so expensive. Surely this stuff is already produced on an enormous scale with machines that have a tiny amortized cost.

    Anyone got any ideas?

    --
    SJW n. One who posts facts.
    1. Re:Not sure I understand. by chill · · Score: 1

      Supply and demand, the same with everything else

      This gadget will essentially take the control of the supply of the refined product (filament) out of the hands of the middlemen. It allows the end-users to refine the raw material themselves.

      --
      Learning HOW to think is more important than learning WHAT to think.
    2. Re:Not sure I understand. by Hentes · · Score: 1

      The same reason normal printer cartridges are expensive.

    3. Re:Not sure I understand. by Anonymous Coward · · Score: 0

      I understand his invention.

      What I don't understand is how plastic filament is so expensive. Surely this stuff is already produced on an enormous scale with machines that have a tiny amortized cost.

      Anyone got any ideas?

      I imagine that the demand is currently growing rather rapidly, which means additional expensive machinery which hasn't amortized the cost.

      See also the case of supply v. demand.

    4. Re:Not sure I understand. by Anonymous Coward · · Score: 0

      As a quality control inspector in the aerospace and nuclear industry, I can attest that this plastic isn't the crap chinese toys are made of. It's Delrin, and it's tough enough to craddle the lives of the men and women on the ISS

    5. Re:Not sure I understand. by ikaruga · · Score: 1

      This. I see people all over the internet waiting for the $100 3d printer. Don't worry, we'll get them. But be prepared to pay with your body for the model and support materials.

    6. Re:Not sure I understand. by TheLoneGundam · · Score: 1

      Plastics are primarily made from petrochemicals - i.e. petroleum-based, so their prices fluctuate with the price of oil.

    7. Re:Not sure I understand. by Anonymous Coward · · Score: 0

      I used to work in QC at a company that manufactured plastic kayaks, and we tested dozens of 800-lb. boxes of plastic "resin" (like sand, really) every day. That's enough plastic for about 15 kayaks. I'm guessing a box of plastic (http://www.aschulman.com/Default.aspx) probably costs less than a dollar a pound.

      The first time I saw a 3D printer in action (on This Old House), it looked as if the stuff the model was buried in was the same sort of plastic powder.

    8. Re:Not sure I understand. by Anonymous Coward · · Score: 0

      Simple economics of supply & demand. Demand is higher than the supply, keeping the prices up.

  8. Common Sense is KEY to engineering by tekrat · · Score: 3, Insightful

    Unfortunately, "Common Sense" is in short supply. It's actually the rarest element of all, and very likely, this gentleman succeeds where others fail because he applies common sense.

    There are a lot of very smart, clever people out there, but not that many smart, clever people with common sense. Trust me on this.

    --
    If telephones are outlawed, then only outlaws will have telephones.
    1. Re:Common Sense is KEY to engineering by Opportunist · · Score: 1

      Unfortunately, common sense is often present in clever, smart people when they start to learn, it's our school system that usually quickly strips them from it.

      Think back to your school days. How long did it take you to figure out to forego common sense and ponder what the teacher wants to hear? Those who manage to struggle through school somehow yet retain their common sense are usually the few that can save a little bit of theirs.

      Sadly, we rarely think of people who had bad grades as "clever" and "smart".

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    2. Re:Common Sense is KEY to engineering by Anonymous Coward · · Score: 1

      This is absolutely true, and also a very hard battle to win... if they can't condition free thinking out of you, they'll try and drug it out. And if they can't drug it out, they'll kick you out of public school and send you to alternative schools specially designed for that kind of conditioning. As a last resort they take you away from your parents and lock you up at a "residential school" where you're bombarded 24/7 with conditioning to make you "status quo."

      I survived all of this and still kept my common sense, but I sometimes wish I hadn't. Take it from me, it's impossible to achieve anything but downward mobility when you sacrifice authoritarian societal acceptance for your wits. In the end you just spend your life being bitter and jaded against the world and the stupid people all around you for being the reason you can't have nice things. You know what they say: ignorance is bliss.

      99.98th percentile intelligence, and I'm stuck at the dead-end of my career below the glass ceiling, and can't afford the degree I need to be taken seriously. Having uncommon sense is a very small victory in the grand scheme of things.

    3. Re:Common Sense is KEY to engineering by Opportunist · · Score: 1

      Very true, but then again, I wouldn't want to trade. Yes, I won't be the darling of the market considering that I prefer thinking to mindless consuming and creating to consuming, but in the end I found that I don't really need a lot of money.

      I get by, with my wits intact and my moral integrity at least halfway retained. The only thing that is still hard is to grin and nod when a superior declares his intellectual bankruptcy with yet another speech bubble.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    4. Re:Common Sense is KEY to engineering by Anonymous Coward · · Score: 0

      Part of the greater problem is the classist implications of this; god help you if you're a smart person growing up poor.

      There's also a sort of innovative regression when smarter people are systemically removed from the path to making policy or design decisions. It works great for keeping the status quo and the present ruling class in charge, but generations down the line all of society is going to suffer for it, and badly.

    5. Re:Common Sense is KEY to engineering by Anonymous Coward · · Score: 0

      Oh, stop whining. All you need to survive in society if you're smart is to give people what they want. And the more of a bastard you are the more they like you, for some obscene reason, as long as you don't outright kick them in the balls. Your problem seems to be that you like people too much or suffer from unwarranted moral perfectionism.

    6. Re:Common Sense is KEY to engineering by HornWumpus · · Score: 1

      99.98?

      If you were half that smart you would realize that intelligence testing is not that accurate.

      You are good at test taking.

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
    7. Re:Common Sense is KEY to engineering by Sigg3.net · · Score: 1

      Your common sense is unqualified.

      He didn't use common sense. He used his 65 years of experience, knowledge of materials and methods, and trial and error. Which is his expertise.

      Which of his neighbours could do the same?

      The reason I am pointing out the obvious, is because the general term of common sense more often than not implies a tacit denouncement of expert knowledge, and is usually pulled out to justify a particular ignorance and save face. In this case, I expect it's good old modesty however.

      I am a philosopher, but two years back I had to dress an uneven beam with electricity tubes running along the top with plaster. I solved the puzzle by creating 9 U-shaped parts with 23mm thick wood pieces, angles and holed coins (1 NOK for the right spacing), and with adjustable screws the beam is now 99% even. I didn't use common sense. I used creativity.

  9. Re:Trial & Error Works When You Can Afford Err by Intrepid+imaginaut · · Score: 5, Insightful

    Accumulating the knowledge so you didn't need trial and error probably took a fair bit of trial and error to start out with though. :)

  10. Re:Trial & Error Works When You Can Afford Err by Anonymous Coward · · Score: 0

    But they are built like that. Every bridge failure, building collapse and airplane crash was a failed trial.

  11. Re:Trial & Error Works When You Can Afford Err by Anonymous Coward · · Score: 0

    All of those things have been replicated in software. When adding new things, they just change the model in the software and see what happens. Trial and error is always there, and has ended before construction.

  12. Recycling ABS? by chill · · Score: 2

    Can anyone tell me how well ABS recycles? I'm thinking about something like this extruder, but instead of using bulk pellets, dicing up old projects and tossing them in the hopper. Recycle the plastic to make new stuff.

    --
    Learning HOW to think is more important than learning WHAT to think.
    1. Re:Recycling ABS? by grahamsz · · Score: 1

      I can't see why it wouldn't work. The extruder just appears to be melting the pellets and shaping them as filament, then the filament is melted in a 3d printer to make an object, I can't see why you couldn't repeat unless there's some chemical in the ABS that becomes weaker with each melt and set cycle.

    2. Re:Recycling ABS? by Anonymous Coward · · Score: 4, Informative

      Thermoplastics tend to degrade slightly each time they're processed, generally losing strength. In industry regrind is mixed with virgin material before reuse. Most polymer manufacturers suggest maximum regrind levels on their datasheets. Usually it's 25-50%, but for non critical applications you can happily use 100% regrind.

    3. Re:Recycling ABS? by DadLeopard · · Score: 1

      Already on the market! Just at a higher price point since it needs a grinder in addition to the heater extruder that he has, plus it is sold assembled and for a profit! http://filabot.com/

  13. Filament quality? by ArcadeMan · · Score: 2

    One of the thing that makes a good 3D printer filament is a perfectly round one with a constant diameter. I'm guessing it was two requirements of the contest but the author was too lazy to put a link on the "Desktop Factory Competition" text.

    Yes I can search "Desktop Factory Competition", but so will 500 other people. I'm not being lazy, I'm saying one person should have worked 5 seconds more to write the post instead of making 500 people waste 2 seconds. It's basic mathematics.

    1. Re:Filament quality? by chill · · Score: 1

      You sound like an engineer. :-)

      TFA itself contains many useful links, including a link to Thingverse, which in turn has a link to the BOM and everything else needed in the way of documentation.

      http://www.thingiverse.com/thing:34653

      --
      Learning HOW to think is more important than learning WHAT to think.
  14. Re:Trial & Error Works When You Can Afford Err by c · · Score: 1

    Trial and error is always there, and has ended before construction.

    Hopefully.

    --
    Log in or piss off.
  15. Re:Trial & Error Works When You Can Afford Err by Anonymous Coward · · Score: 1

    Well, the irony is that evolutionary algorithms are sometimes incredibly useful optimization techniques, and amount to the same approach:

    http://en.wikipedia.org/wiki/Evolutionary_algorithm

    Sometimes the cost of not using trial and error is bigger than the cost of not using it. When your solution space is huge and discrete, sometimes it's the only way to go.

  16. What is the problem? by Anonymous Coward · · Score: 0

    40 Years ago I ran a machine that made bits of plastic to use for 'sand blasting' aluminum transmission cases for the US automakers. It was a huge hopper with a screw that forced heated plastic through a die with a bunch of holes in it. The extruded plastic filiments were then run through a water bath to rapidly cool it. Finally, it went into a cutter that chopped it up into tiny bits.

    If you just removed the cutter you would get continuous filiments.

    His machine is just a scaled down version of what I used 40 years ago, a total no-brainer.

    I wonder if the USPTO will issue a patent.

    1. Re:What is the problem? by Anonymous Coward · · Score: 0

      Building one for under $250.

    2. Re:What is the problem? by Anonymous Coward · · Score: 0

      Ya, I read the article. I still do not see what the problem is.

    3. Re:What is the problem? by HornWumpus · · Score: 1

      There are very old plans out there on how to turn drill press into a very cheesy injection molding machine.

      You fabricate a barrel and screw and work the screw advance with the drill press handle.

      Not exactly $250 but in that ballpark.

      He might have resubmitted the same basic design. Of course I didn't RTFA.

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
    4. Re:What is the problem? by ArcadeMan · · Score: 1

      The diameter of the filament must be 1.75mm, ± 0.05mm

  17. Which is the best 3d printer? by schneidafunk · · Score: 2

    I am interested in buying a 3D printer. Does anyone have experience / recommendations? The cheapest I have seen is $500 at http://store.solidoodle.com/ but I'm curious if it is worth spending more for a 'higher quality' printer.

    --
    Some people die at 25 and aren't buried until 75. -Benjamin Franklin
    1. Re:Which is the best 3d printer? by ArcadeMan · · Score: 1

      The Printrbot is cheaper and from the videos I've seen on YouTube, it seems to work just fine.

    2. Re:Which is the best 3d printer? by schneidafunk · · Score: 1

      Thank you for the recommendation. I looked it up and it seems that solidoodle is still cheaper. For $500, you get 6"x6"x6" and a power supply, versus printrbot which is 4"x4"x4", does not include a power supply but does come with 1lb of filament.

      --
      Some people die at 25 and aren't buried until 75. -Benjamin Franklin
    3. Re:Which is the best 3d printer? by Anonymous Coward · · Score: 0

      Mendel90 because it's designed by the reprap-legend nopehead.

      http://forums.reprap.org/read.php?94,170238

    4. Re:Which is the best 3d printer? by mishu2065 · · Score: 2

      Make magazine seems to have made a comparative review of the hobby market 3D printers recently. It is available here. I don't know if it's any good, but I am considering buying it because I am also looking for a 3D printer.

    5. Re:Which is the best 3d printer? by rmelton · · Score: 1

      You will get a lot of strong opinions about this. I also have been researching 3d printers and came to the conclusion that solidoodle has a reputation for extruder jams. I recommend you read a few posts before you decide and judge for yourself.

    6. Re:Which is the best 3d printer? by Pallas+Athena · · Score: 1

      I guess that for 3D-printers the same goes as for about anything else - if nothing but the price matters, you probably end up paying a price for nothing. I do recommend reading the Make magazine, it gives you at least some background of what to expect for which price.

    7. Re:Which is the best 3d printer? by Anonymous Coward · · Score: 0

      I really can't say anything for or against the other printers but I do have a solidoodle and it is a decent little printer.

      Really anything on the hobby level is going to have a learning curve and take a bit to get dialed in for good prints.

      The one thing I will recommend is whatever you get should have a heated bed. Kapton is OK but once I went to a borosilicate glass pane and light misting of unscented hairspray I don't think I'd ever go back to Kapton. On the plus side adding a borosilicate* print surface should be fairly simple on most any 3D printer.

      *People have said that normal window glass works, borosilicate is more expensive it is also much less susceptible to thermal shock than regular glass.

    8. Re:Which is the best 3d printer? by smellsofbikes · · Score: 4, Informative

      I am interested in buying a 3D printer. Does anyone have experience / recommendations? The cheapest I have seen is $500 at http://store.solidoodle.com/ but I'm curious if it is worth spending more for a 'higher quality' printer.

      Figure out what you want to print. There's a fairly large variation in build area, so if you're wanting to print stuff the size of textbooks you're going to want a larger printer. Likewise, most extrusion printers have a minimum print resolution in the 0.5mm or thereabouts area, so if you want fine detail you may be wasting your money on an extrusion-type printer. Printers with better resolution are usually photolithography-based and an order of magnitude more expensive, at which point a commercial print service like shapeways seems a lot more attractive.
      With any extrusion-type printer, I think the most important item is that it's popular, because you're going to spend time debugging and adjusting and generally fussing around with it; if you get a snazzy brand-new design you're the beta tester. If you get something that has three years of hundreds of people working with it, all the problems you can encounter have already been encountered and dealt with.
      If you want to get more printer for less money you can build it yourself: there are a variety of plans where you buy a printed set of parts, source all the structural parts yourself, and make your own. What I said above about finding one where design and implementation issues are well-known and there's a support community in place goes double for this option.

      I strongly recommend that you only start down the 3d printer path if you have projects for which you already have need for printed items; if you get one just because it's the hip thing to do for geeks, you're likely to be wasting your money. With that said, once you have one, you suddenly start printing a whole lot of things you never thought you would, because you can: I have friends who print live animal traps, plumbing parts, and light bulb fixture components now that they have 3d printers.

      --
      Nostalgia's not what it used to be.
    9. Re:Which is the best 3d printer? by Smidge204 · · Score: 2

      In addition to having an idea of what you'd use it for, I'd like to offer the following advice regarding how much to spend / what to buy:

      How much work are you willing and able to do yourself?

      The more effort you're willing to put into making the machine, the less expensive it's likely to be. Right now, the cheapest machine I'm aware of that's not total junk is the Prusa i3 ("Box frame" version) which you can stick together for under US$500 if you're savvy about where you buy parts from and you're handy with basic tools.

      Be forewarned that 3D printing is a proper hobby - the kind of thing you can throw embarrassing amounts of money and time at, and the only people who will understand are those who are also part of the hobby. I do not know what kind of quality you can get with a Solidoodle. In my experience the machine itself is a relatively minor part of the equation: Endless tinkering and calibration, along with quality filament, are far more important to print quality. It's only when you get into machines that have been stripped down so much to reduce costs that quality gets impacted... see: Printrbot and it's unsupported vertical axis.
      =Smidge=

    10. Re:Which is the best 3d printer? by schneidafunk · · Score: 1

      I want to print custom chess pieces, and am more interested in the finished product, than tinkering around with getting the printer to work. I am willing to pay more for a working usable printer right out of the box. Do you have any recommendations based on those requirements?

      --
      Some people die at 25 and aren't buried until 75. -Benjamin Franklin
    11. Re:Which is the best 3d printer? by Anonymous Coward · · Score: 0

      Free buying guide:
      http://makermedia.createsend5.com/t/r-l-mhkllu-jtykhukith-jj/

    12. Re:Which is the best 3d printer? by smellsofbikes · · Score: 1

      Unfortunately, I don't have any experience with ready-to-print extrusion-type 3d printers, just DIY ones, and the ready-to-print photolithography printers I've worked with, I can't recommend anyone purchasing.

      If you're thinking about making chess pieces for standard-sized boards, that's going to be at the edge of the resolution an extrusion-type printer can do, so in any case I'd recommend finding someone/a hackerspace with a printer that has a 0.5mm or 0.3mm nozzle and seeing what their prints look like, to see if it'll match what you're intending to do. There's a lot of research going on right now about using vapor-phase acetone to smooth the surfaces of ABS prints, which makes fine-resolution prints look great, but if the detail you need isn't there, that's not going to fix it. It just reduces the made-in-Minecraft appearance.

      --
      Nostalgia's not what it used to be.
  18. Re:Trial & Error Works When You Can Afford Err by Opportunist · · Score: 1

    Cathedrals were mostly built by try and error. Most of them wouldn't get past modern day building codes either because of their static. Some still puzzle the collective architecture society because they can't figure out just WHY those things didn't come crumbling down ages ago.

    Try and error is where true innovation is. There are simply some things you cannot calculate because they are, well, new. Nobody has done it before and there are no numbers to rely on. The example of that Saturn V rocket was already presented, where they had to come up with completely new technology that simply didn't exist before they invented it.

    But yes, the cost of try and error is usually magnitudes higher than when you can simply calculate and predict the results. But sometimes you just cannot.

    --
    We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  19. Combustion plate by advid.net · · Score: 1

    Could you please point to some detailled article about this combustion plate story ?

    (I stopped searching when I realized google drives me to your old posts such this one from 2009)

    Sorry for the off topic

    1. Re:Combustion plate by History's+Coming+To · · Score: 3, Informative

      See U.S Space-Launch Vehicle Technology, Hunley, 9780813031781, page 196.

      --
      Please consider this account deleted, I just can't be bothered with the spam anymore.
    2. Re:Combustion plate by History's+Coming+To · · Score: 3, Informative

      Also covered in Stephen Baxter's Titan, page 170-172 in paperback ISBN 9780006498117

      --
      Please consider this account deleted, I just can't be bothered with the spam anymore.
  20. Re:Trial & Error Works When You Can Afford Err by Anonymous Coward · · Score: 0

    Heaven forbid there is a bug in the software.

  21. I call BS... by Anonymous Coward · · Score: 0

    He does NOT look 83 :P

  22. The Engineer and the Balloonist by Fnord666 · · Score: 5, Funny
    A man in a hot air balloon realized he was lost. He reduced altitude and spotted a woman below. He descended a bit more and shouted, "Excuse me, can you help me? I promised a friend I would meet him an hour ago, but I don't know where I am."

    The woman below replied, "You're in a hot air balloon hovering approximately 30 feet above the ground. You're between 40 and 41 degrees north latitude and between 59 and 60 degrees west longitude."

    "You must be an engineer," said the balloonist. "I am," replied the woman, "How did you know?"

    "Well," answered the balloonist, "everything you told me is, technically correct, but I've no idea what to make of your information, and the fact is I'm still lost. Frankly, you've not been much help at all. If anything, you've delayed my trip."

    The woman below responded, "You must be in Management." "I am," replied the balloonist, "but how did you know?"

    "Well," said the woman, "you don't know where you are or where you're going. You have risen to where you are due to a large quantity of hot air. You made a promise which you've no idea how to keep, and you expect people beneath you to solve your problems. The fact is you are in exactly the same position you were in before we met, but now, somehow, it's my fault."

    --
    'The tyrant will always find pretext for his tyranny.' - Aesop's Fables
    1. Re:The Engineer and the Balloonist by locopuyo · · Score: 2

      Is it normal for people to use hot air balloons to meet people out in the middle of the ocean or just is it a manager thing?

  23. Methinks he is lying. by Anonymous Coward · · Score: 0

    Torque calculations are covered in freshman physics. Is he a four year freshman? Is physics not a prerequisite for just about all engineering classes? Is the University of Utah that big of a party school?

  24. Re:Trial & Error Works When You Can Afford Err by IndustrialComplex · · Score: 4, Interesting

    Accumulating the knowledge so you didn't need trial and error probably took a fair bit of trial and error to start out with though. :)

    That's why as an engineer you should consider performing a Failure Modes Effects and Criticality analysis (FMECA). Quite often you can predict the error, and account for it. Sometimes you account for the error by adding in additional maintenance/inspections, other times you have spares, sometimes you perform preventative maintenance, and sometimes you put a net underneath the bridge.

    Let's assume your bridge is being constructed from stone (longevity or maintenance reasons), you know that it will eventually erode, crack, and wear out, but you build into your design features which are intended to help delay the failure, or allow for a graceful failure. So instead of designing your bridge to be covered with paint because that would block some of the environment, you forgo the protective paint and leave it exposed to the elements because now you can send a crew to inspect the bridge every 5 years for cracks/erosion/damage which might have been obscured by the paint. While the paint might have extended the life of the bridge by 10 years in ideal situations, being able to inspect the bridge might allow you to discover the crack which would cause a catastrophic failure at life-5 years.

    Sometimes you have to accept error as part of the design because correcting that error might compromise other aspects of the design.

    --
    Out of modpoints but really liked a post? 1BDkF6TtmmeZ3yqXbz9yhdYVqRYnwFoXDj
  25. who said old dogs have no new tricks by hesaigo999ca · · Score: 1

    Great to hear at that age, he still inventing stuff...

    1. Re:who said old dogs have no new tricks by OakDragon · · Score: 1

      When asked what he planned to do with the money, the octogenarian replied "Spend it, fast!"

    2. Re:who said old dogs have no new tricks by hesaigo999ca · · Score: 1

      O_O

  26. Re:He's not the only one by Anonymous Coward · · Score: 0

    Rejection rate of applicants is given heavy weighting in college rankings, while attrition of matriculants is given less weighting or even negative weighting in some cases (I think the reasoning is that if you fail it's because the college didn't do enough to help you.).

    My alma mater recently made the mandatory application essays "optional but strongly suggested," simply to increase the rejection numbers. Nothing really changed much since most or all serious applicants get the hint and write the essays anyway; however, since only complete applications could be officially rejected, they got to count everyone who didn't write the essays as rejected rather than incomplete. Go figure.

    Anyway, this means that colleges are evaluated based on standardized tests (conveniently, testing companies publish college reviews) and the high school experience of their applicants. It couldn't be more backward.

  27. Not smart enough to calculate torque but ... by tyrione · · Score: 3, Interesting

    spent 5 years at The University of Utah studying engineering? Sorry, but you learn that in your freshman year. Great story, but that part is laughable. As a Mechanical Engineering graduate '93 from WSU I know what the hell I'm talking about, just like a person above me claiming the guy is lying.

    1. Re:Not smart enough to calculate torque but ... by Anonymous Coward · · Score: 0

      He might have learned how to do that in his freshmen year, but that was many decades ago.

  28. Re:Trial & Error Works When You Can Afford Err by Bigby · · Score: 1

    Yet it happens all the time. You can start with the pyramids; the bent pyramid is an example where they changed the design halfway through. How about some Italian domes? Look at the gothic support structures because of what they learned. You can look at the Tacoma Narrows Bridge. World Trace Center towers. The Wright Brothers certainly used trial and error.

    You avoid errors by following procedure that was put in place to avoid mistakes (trials) of the past.

  29. Re:Trial & Error Works When You Can Afford Err by Anonymous Coward · · Score: 0

    Cathedrals were mostly built by try and error. Most of them wouldn't get past modern day building codes either because of their static. Some still puzzle the collective architecture society because they can't figure out just WHY those things didn't come crumbling down ages ago.

    Uhm, I know why they didn't come crumbling down ages ago. It's no puzzle. They ones that are here today didn't. All the others did.

  30. Re:Trial & Error Works When You Can Afford Err by sjames · · Score: 1

    It's fine to design that way as long as you then rigorously validate the design before building.

  31. Re:Trial & Error Works When You Can Afford Err by trout007 · · Score: 1

    Exactly, it is called engineering.

    --
    I love Jesus, except for his foreign policy.
  32. Mathematics Torque..etc. by hackus · · Score: 2, Funny

    He decided he didn't want to take that route, and tinkered instead.

    Although I do not recommend that, as just a little knowledge of Mathematics can save you a great deal of time and effort in engineering activities of all types, including software. I can see why he never finished college.

    So, although I am similar in that I personally refuse to get any degree because:

    1) You are you are forced to have a bank involved if you want to be educated.
    2) You are put into a institution, like other crazy people and forced to think exactly the same way, and if you do not you are considered a failure.
    3) You are not required to produce a solution to any problem in your community or society to earn this degree, only provide a solution for corporation and human resource departments to screen others who are not in on the Ponzi scheme of banking. (See #1, rinse and repeat.)

    With that being said though, I do attend UW-Madison every once in awhile just to make sure I am not totally cynical, just mostly cynical. :-)

    But I already have my "degree" in my opinion as I have my own professional practice, I feed myself with the solutions I come up with that people pay me to solve their computing problems and all the time I am competing with B.S., M.S., and PhD's for the same customers. (Mostly winning.)

    With the exception I have a nice tidy net worth and no debts far below and above most of these people.

    The few jobs I have applied for in my career, most people ask me how is it possible you accomplished all of these things?
    (Most seem downright annoyed too...)

    To which I reply, "I am not very smart really. Just everyone else is extremely stupid that go to Universities." ;-)

    -Hack

    --
    Got Geometrodynamics? Awe, too hard to figure out? Too bad.
    1. Re:Mathematics Torque..etc. by Anonymous Coward · · Score: 0

      With the exception I have a nice tidy net worth and no debts far below and above most of these people.

      Net worth far below and debts far above most of these people, or did I read the order wrong?

    2. Re:Mathematics Torque..etc. by Anonymous Coward · · Score: 0

      I thought professional engineers in the USA have to pass the PE exam? Or are you not an engineer?

    3. Re: Mathematics Torque..etc. by Anonymous Coward · · Score: 0

      Correct. To be called a PE (Professional Engineer), you must pass two tests: the FE (Fundamentals of Engineering) and the PE. Most people opt to take the FE during the latter part of their college career. Then, if you are lucky, after a few years of working under a licensed PE, you can be eligible to take the PE exam.

      While the PE is useful and required for certain things, it is not the be-all-end-all being an engineer. For example, in my industry (general aviation), finding someone with a PE designation is the exception, not the rule.

  33. Use a big hammer by gurudyne · · Score: 1

    I have designs for safety related equipment used by the industry for almost 20 years before I got around to completing a degree.

    One of my favorite tests was to use a 220Kg hammer (on a pendulum)to smash the competitions stuff against an anvil. Then I made sure my stuff took at least twice as much swing to break, while have fewer, less expensive parts. Fail fast and often, then figure it out.

    And those items are still used today.

    Because I listened. Both to engineering instructors (with over 250 hour to graduate, I had a broad education) and to old BDIFFF (Been Doin' It For F*****g Forever) people. Hi, Jake!

    I learned how to do for a dollar what any damn fool could do for two.

    --
    Hey, Mom! Is it beer, yet?
  34. Re:What a cool guy by Richard+Dick+Head · · Score: 1

    Seriously! I like how humble he is. Please ask him if he's looking for an extra grandkid.

    How is that supposed to work? "Excuse me, sir, can I live in your basement?"

    ::You look up and see an 83 year old man covered in acne puss, screaming like a little girl and running from something that could only be...Pizza the Hutt::

  35. Locating pellets to be recycled by guinea+pig+C · · Score: 1

    Perhaps our largest recyclable plastic resource is the North Pacific Gyre, or as it is rapidly becoming better known, the Great Pacific Garbage Patch, an enormous 'plastic soup' mass of marine litter trapped in the swirling vortex of currents of the Pacific Ocean. Recent studies estimate an average of 46,000 pieces of plastic litter every single square kilometre of the world’s oceans. The number of plastic pieces in the Pacific Ocean has tripled in the last ten years to what the UN estimates at one hundred million tons worldwide, with current trajectories predicting this figure to double in the next ten years. A ‘fishing for litter’ campaign involved fisherman from Sweden, Denmark, the Netherlands and the UK who returned all litter caught in their net to the shore, landing some five hundred tonnes from sixty boats in 2004. By diversifying modern fishermen’s skills to restore our ocean environment, it is hoped that schemes like this will help regenerate Britain’s once strong fishing community. Makerbot support the 3D4D Challenge, a competition that awarded Washington Open Object Fabricators (WOOF) a prize of $100,000 to develop a recycling process that will enable waste plastic to be used as filament for 3D printing machines. The project is focussing on recycling high-density polyethylene, the plastic used in milk cartons, but the requests for finished products have been slightly different to what might have been expected. You could be forgiven for thinking that many Africans would want more mass-produced items such as buckets and plastic bowls. However the project coordinators doubt that a 3D-printed bucket—even one made from milk bottles—will ever be cheaper than one made in a factory. The surprising alternative to buckets is actually boats. Most small vessels in West Africa are made from hardwood trees, such as teak, that are becoming increasingly scarce. Making them from waste plastic instead is an environmental win/win: rare species are conserved and less rubbish thrown away. The team estimated that if they had printed a boat from commercial plastic filament it would have cost them $800. Instead, 250 clean, empty milk bottles set them back just $3.20.