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What's the Coolest Thing You've Ever Built?

Josh Lindenmuth asks: "In high school I was involved in an engineering competition where we needed to create a machine that could move 100 lbs of groceries from a disabled person's car up and down a set of stairs, and then into their kitchen. It was probably the coolest thing I ever built (there were only 3 of us on the team), even though the wooden treads started splintering halfway up the stairs (we didn't have a metal shop, so it was made entirely out of wood, spare boat parts, and conveyor belts) and then it completely destroyed the stairs on its way down (it weighed over 300 lbs)." That's Josh's story, now he wants to know yours. Cool computers, cars, hovercraft, handheld devices, fusion reactors — what is the most interesting gadget, product, or device that you've ever built on your own?

21 of 535 comments (clear)

  1. My Son by Anonymous Coward · · Score: 5, Funny

    Period!

    1. Re:My Son by Anonymous Coward · · Score: 4, Funny

      Mod parent up! HA HA! Really! Parent! Oh, pinch me!

    2. Re:My Son by Fulkkari · · Score: 4, Funny

      Built? If you are the average Slashdotter, you merely did half of the design.

      Although...

      Getting that far can be already be seen as a great accomplishment over here. :-)

      --
      I demand the Cone of Silence!
    3. Re:My Son by hotdiggitydawg · · Score: 4, Funny

      Actually, as a theoretical worst-case he may have not even been the one who "put in the successful tender", and just been stuck with the rather lengthy maintenance contract.

    4. Re:My Son by quigonn · · Score: 5, Funny

      That's right. Both take about 9 months to complete.

      --
      A monkey is doing the real work for me.
  2. I gots you all beat by Quiet_Desperation · · Score: 4, Funny

    I built a reality simulator. You're living in it right now. Neat, huh?!

    1. Re:I gots you all beat by hotdiggitydawg · · Score: 4, Funny

      No, it sux bigtime. The plot moves at a glacial pace. Why do you think we're always trying to escape it?

  3. That one time by pap3rw8 · · Score: 5, Funny

    There was that one time I built a machine that could propel cats to the moon. It almost worked, too.

    1. Re:That one time by ArsonSmith · · Score: 4, Funny

      Is that why I found a dead cat in my back yard yesterday?

      --
      Paying taxes to buy civilization is like paying a hooker to buy love.
    2. Re:That one time by Savage-Rabbit · · Score: 4, Funny
      Is that why I found a dead cat in my back yard yesterday?


      That depends.... Was it wearing an astronaut's suit?
      --
      Only to idiots, are orders laws.
      -- Henning von Tresckow
  4. Mine by iamdrscience · · Score: 5, Funny

    One time I made a "Jump to Conclusions" mat. You see, it was this mat that you would put on the floor... and had different conclusions written on it that you could jump to.

  5. Re:I hate to (have to) ask... by setirw · · Score: 4, Funny

    I think many /. readers weigh >300lbs, period.

    --
    This message printed on 100% post-consumer recycled electrons.
  6. Re:I hate to (have to) ask... by Anonymous Coward · · Score: 5, Funny

    Feet tend to distribute wait in a nice, convenient way. That, added to the fact that muscles allow us to slowly descend our feet to contact the step. A 300lbs robot composed of wood, probably does not have this feature. Plus, wood is much harder than flesh (duh). Get a 300lbs pirate with wooden pegs for legs and watch him fuck up your stairs in a few weeks.

  7. Re:I hate to (have to) ask... by Chris+Burke · · Score: 4, Funny

    I don't know, but I'm thinking he'd view his project as much more of a success if he simply re-defined it. Machine for carrying groceries up stairs? No! Automatic Staircase Destroyer? Hell yes!

    --

    The enemies of Democracy are
  8. My best - the Abtaser (and my other IP flops, too) by transporter_ii · · Score: 4, Funny

    Been working on a list of my biggest inventions and intellectual property items that flopped in a big, big way. My coolest inventions and IP flops are:

    • My book, "Men Are From Mars, and Women Love Martian Penis," failed to crack the NY Times Best Seller list for five consecutive years after publication.

    • NBC cancelled my sitcom, "Nudist, With Children," before a single episode was aired.

    • My idea for non-decomposing toilet paper never made it to market.

    • While at first very successful, my tubs of chocolate-chip cookie-dough flavored roach poison, designed to fool even the most intelligent roaches, were pulled from shelves nationwide. While a federal judge initially upheld an injunction on the recall, the injunction was later overturned by a law created in a special session of Congress (the law was named Kimberly's law, in honor of the memory of the two-year-old baby Kimberly).

    But my all time coolest thing I have built, and my biggest tech flop, is one I called an abtaser:

    Abtaser

    Because of their small size, AbTasers can fit easily in your purse, bag, backpack, coat etc. Other Ab products, like Ab belts, are bulky and only work your Abs. The AbTaser's design lets you not only work other parts of the body, but you can work other people's Abs from up to 15 feet away!

    Conveniently carry it with you whenever traveling around town, shopping leaving bars or night clubs, using pay phones, parking lots, garages, alleys, subways, bus stations, home alone, walking, jogging, running errands, deliveries, and for house wives, students, daughters, night workers, drivers, law enforcers, sales people, travelers, security guards, etc., and for anyone needing or wanting extra exercise.

    Other low-power Ab products have to be used for an extended period of time. The high-powered AbTaser works every muscle in your body in a split second. And again, not only is it capable of working your abs, but you can also work the muscles of others up to 15 feet away. Imagine your bosses surprise when you decide he needs a little exercise! AbTasers are great for relieving stress, too. Feeling down, feeling blue? AbTasers will give you a new outlook on life!

    *Check federal, state and local laws before ordering your AbTaser! Do NOT carry your AbTaser concealed. Do not attempt to use the AbTaser while operating a motor vehicle. Do not use the AbTaser on someone else operating a motor vehicle. Do not attempt to board aircraft while in the possession of an AbTaser.

    --
    Doctors destroy health, lawyers destroy justice, universities destroy knowledge, religion destroys spirituality
  9. Re:Biodiesel Reactor by Anonymous Coward · · Score: 5, Funny
    We also had a $500 budget which we exceeded by $4500, the project was paid for by a department...


    have you considered a rewarding and successful career with the United States Government?
  10. Dude ... the joke's on you. by Savage-Rabbit · · Score: 4, Funny
    I built a reality simulator. You're living in it right now. Neat, huh?!


    Your self are living in one of my own collection of home built reality simulators. I'll give you credit for being the only one of my simulated worlds to develop a reality simulator inside your simulation.

    Greetings,
    Your Lord and Creator.

    P.S. If you think that's strange you should see the 4D Holo-presentation I got the other day attatched to a subspace mail message. It's from a giant lizard like creature who claims that I am living on a planet in a miniature universe he carries in a little marble on his keychain....
    --
    Only to idiots, are orders laws.
    -- Henning von Tresckow
  11. Re:I hate to (have to) ask... by dapsychous · · Score: 5, Funny

    You work for Microsoft, don't you?

  12. Re:I hate to (have to) ask... by hotdiggitydawg · · Score: 4, Funny

    You missed the major factor - contact surface area. If you've got a polished wood floor, a 120lb woman can very easily damage it in high heels if the surface area of the heel is small. I imagine a 300lb geek dressed as a pirate in high heels would go right through to his parent's basement.

  13. I win by jbrader · · Score: 4, Funny

    Back in high school I made a really huge bong out of 1 liter soda bottles and aquarium tubing.

    --
    You are so boring that when I see you my feet go to sleep.
  14. Reminds me of a joke by kbielefe · · Score: 5, Funny
    Maybe when DNA research advances, you can actually build your child.

    That reminds me of a joke:

    A scientist goes to God and says, "We don't need you anymore. I can create a human from nothing more than a handful of dust."

    "Alright then, let's see," God replies.

    "No problem," says the scientist, and he bends over to scoop up some dust.

    "Hold on," God interrupts. "Get your own dust."

    --
    This space intentionally left blank.