Slashdot Mirror


User: ortholattice

ortholattice's activity in the archive.

Stories
0
Comments
942
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 942

  1. Re:Que the "Can you hear me now" jokes on Verizon Drops 10,000 911 Calls During Blizzard · · Score: 2

    Yes, but they're old and no longer useful. The overall impact is purely aesthetic....it's not really a huge emergency when lots and lots of old people die in the middle of a snowstorm..

    I, on the other hand, think the world would be better off without those who are congenitally devoid of empathy (please look up the word, although it may be hard for someone without it to grasp its meaning).

  2. Re:You Don't Get to Do Anything Fun Anymore on Sputnik Moment Or No, Science Fairs Are Lagging · · Score: 5, Informative
    Check out The Golden Book of Chemistry Experiments http://en.wikipedia.org/wiki/The_Golden_Book_of_Chemistry_Experiments, an amazing book now considered dangerous. The book was apparently removed from most public libraries. I think you can find a pdf via the wiki p links though - it is an amazing book.

    .

    While unfortunately I didn't have this book as a kid, I had some others that were similarly "dangerous", along with a chemistry set with most of the necessary chemicals. I made gunpowder once to prove to myself I could do it. I filled balloons with hydrogen with a simple reaction of aluminum strips and lye in a coke bottle, floated them, and of course applied a match on a long stick to watch them explode with a blue flash. I did a lot of experiments with electrolysis (in the cheapest way possible, directly from 110VAC, through a rectifier and light bulb to limit current; by experience I quickly learned to avoid shocks and do this safely). Eventually I got interested in electronics and left the chemistry behind.

  3. Re:Nice idea but... on UK To Offer PCs For £98, Subsidized Internet Connections · · Score: 1

    Typical solution from someone in the target demographic: Go to local shops (possibly paying bus / or tube fare), look in a few shops, buy one, take it home.

    Typical solution from someone in the target demographic using a computer: Press the button with the picture of a shopping cart, type in what you want. Buy at whatever price is offered.

    Seriously, I had an old Windows PC (forget the brand) with a Shopping Cart button above the function keys, next to the Web button and the Email button. Actually, I have no idea what it did; I never pressed it, even out of curiousity. Probably I was subconsciously afraid it would install some horrendous advertising software deeply ingrained in the OS and impossible to get rid of, that would pop up with every app or something like that. Plus it would notify the vendor, "Here is a clueless luser who pressed the shopping cart button. Price accordingly."

  4. Re:NY Times Links Broken Via Submission Process on Wikileaks To Name Swiss Bank Tax Evaders · · Score: 2

    Until it is fixed, perhaps the workaround is to include the URL as the hyperlink text in submissions referencing the NY Times. Like this: http://www.nytimes.com/2011/01/17/us/17gaming.html (non-subscribers should text-copy/paste the link).

  5. Re:OLPC revolutionized Laptops - time to do it aga on OLPC Halves Power Consumption For XO 1.75 · · Score: 1

    I'd never be able to use an OLPC for anything I do.

    Actually, I still use my original XO-1 for one thing that no apparently other netbook or laptop can do: it is the only netbook I know of that can be read in full sunlight. When I go to the beach, I can sit 5 hours in the sun while working - in my case, using the bash shell, which is perfect for my particular project. To my knowledge, no other netbook or laptop can do that. If there is one, let me know so I can prepare for next summer... I still hate the OLPC keyboard.

    (Actually I don't like the beach that much but go to keep the GF happy. I've given up on arguments about dangers of too much sun. I sit under an umbrella with SPF 30 sunblock while she perfects her tan.)

  6. Re:What use? on Solar Cells Integrated In Microchips · · Score: 1

    most semiconductors are light-sensitive

    Indeed, many years ago I built an experimental bidirectional fiber-optic link simply by gluing LEDs to each end of a short (3m) plastic optical fiber. (I ground down each LED close to its chip, then polished it and glued it with clear epoxy.) When not powered, the LED would act as a photodiode. It wasn't very fast - the slow response of the circuit I used to amplify the weak current limited it to perhaps 100KHz. But it worked.

  7. Re:Don't buy from them? on Amazon Censorship Expands · · Score: 1

    Actually, it seems to me the removal of these titles would open up a great business opportunity for some young entrepreneur, using a website with a name like booksbannedbyamazon.com (or maybe booksbannedbymajorretailer.com if the use of "amazon" is legally contentious).

  8. Re:Go along with it on German Kindergartens Ordered To Pay Copyright For Songs · · Score: 1

    The schools should go along with it. Make the parents send money with their kid every time they're going to sing in class. ... Maybe if it gets ridiculous enough people will notice.

    However, this might have the opposite effect of indoctrinating the children (and their parents) into mindlessly accepting such draconian enforcement as the status quo.

  9. Re:Guilt by association? on Google To Block Piracy-Related Terms From Autocomplete · · Score: 1
    It seems to me Google is being slightly hypocritical.

    How is it that they can walk into libraries and copy millions of books without paying for them, then use their contents for profit-making content search purposes to boot? (I vaguely recall they reached some kind of settlement with publishers, but only after their piracy was complete. And certainly not $1000s per work like individuals would be hit with.)

    My town library has a big sign over the copier that you are allowed to copy no more than one chapter in a book, it can only be used for personal use, etc. And the librarian will not hesitate to remind you if she thinks you're pushing the rules.

    OK, I know that in principle I could check the book out and scan it at home, and no one would be the wiser. The point is that Google was allowed to do this in plain sight inside the library, whereas you and I would quickly be called to task for such a blatant copyright violation. Why were they not kicked out on the spot? I guess the rules are different if you're a big, rich company. Making it easy to get even bigger and richer for free.

  10. Re:These works were written between 40 - 60 years on Greg Bear, Others Cry Foul on Project Gutenberg Copyright Call · · Score: 2, Interesting

    I foresee copyright claims going the way of (intestate) land claims... inherited by the family or spouse, unless debts are owed, until the end of time.

    Then they should pay property taxes on it until the end of time, just like the real estate taxes they pay on their land.

    Assigning an appraisal value is more problematic than for real estate, but cheating to reduce taxes could be prevented by making the owner's declaration of value an automatic offer to sell at that price. If the owner wishes to avoid the taxes, he or she could assign a value of zero, in which case the "property" would revert to public domain.

    Government lawmakers: take note of this fantastic opportunity to raise new tax revenue to reduce budget deficits!

  11. Re:I've been doing my own thing on Moodle 1.9 For Second Language Teaching · · Score: 1
    I used Pimsleur to help me learn Croatian (lessons 1 through 10). While it was essential to for learning pronunciation and some basics, the vocabulary wasn't extensive.

    In order to learn thousands of words, I used Mnemosyne flash cards, which for that language someone put up several thousand cards (and I added my own).

    While Mnemosyne might not appeal to kids because of its bare-bones appearance, its minimalism is exactly what I want. With it I've already learned most of the words, but I still use it daily so they get committed to long-term memory. Using hot keys I added (from one of the site's plugins, which I customized to use the ASDF keys instead of the mouse for scores 1234), I can review literally several hundred words in a daily 15 or 20 minute session with my first cup of morning coffee. Kind of addictive, actually - I look forward to it each morning.

  12. Re:Great...now just one more issue.... on Making Airport Scanners Less Objectionable · · Score: 2, Informative
    if it is true, and flying is already safer than road travel, then why do we need all the security? ...

    2) Do you have any idea how much freaking money that "security theater" costs? Lots of campaign contributions later, it turns out we have a need.

    Follow the money. http://www.politicolnews.com/chertoff-lobbyists-and-airport-scanners/: "The former Head of Homeland Security had an ulterior motive in promoting the Airport security scanning machines that people are objecting to so strongly. The company that makes the machine is now one of Chertoff's clients but in the past under the Bush administration Chernoff [sic] was selling these machines to the government and to the Obama administration and they bought it hook, line and sinker."

  13. Re:Make it illegal to spew your broadcasts at me on FCC Investigating Google Street View Wi-Fi Data Collection · · Score: 2, Interesting
    Ah, yes, I remember those. Back in the 80s I bought a wide-band scanning receiver that happened to cover the band used by car phones. It came with a separate sheet of paper in the box loudly warning me that I should never tune to that band because it was illegal (citing the appropriate legal codes). Of course you can guess which band I tuned into first.

    I was astounded. Most car phone users acted as if they had no clue their calls could be eavesdropped (only once or twice did I hear someone say, "you better be careful with what you say"), and you could even decode the phone numbers from the tone sequences setting up the call. Many of the calls were routine business calls, some of them were like a young guy trying to impress a girl that he was calling from his fancy new Porche (it would work - she'd say, "Really? Oh wow!", and they'd schedule a date), others were things like a guy telling his mistress they couldn't meet that night because something came up with his wife (right after talking to his wife). Since most of the users back then were wealthy or at least well-off, the blackmail opportunities would have been endless for someone so inclined, and I'm surprised it wasn't something that occurred more often.

    Later, when early cell phones started using the band, something changed where you could hear only one side of the conversation, so it wasn't nearly as interesting.

  14. Re:Great idea on Not Transparent Aluminum, But Conductive Plastic · · Score: 1
    I remember a Popular Science article about giant underground flywheels.

    Yes, the perfect way to power our flying cars and cities under the ocean.

  15. Re:Why can't the text of these books be clearer? on How Google Is Solving Its Book Problem · · Score: 4, Interesting
    As someone studying certain specialized math books from the 1800's and early 1900's, I had great expectations for Google books, since they offer downloadable PDFs for public domain works. However, the focus quality of many (most?) of them is so incredibly poor that things like tiny subscripts are illegible blobs, making them essentially useless.

    While plain text solves this problem for novels, it is useless for math books, because OCR renders the equations (which are the essence of the book) as garbage characters. And it's not clear how one would communicate them as plain text anyway, unless the OCR was extremely sophisticated and generated say LaTeX output.

    Thankfully, some of the ones I need are in the University of Michigan Historical Mathematics Collection, with a much higher quality. But for the ones that are not there, I've used the Google pdf as a last resort - at least I can get an overview, if somewhat unpleasant to read. But for books I actually want to study, I've ended up making my own scan from a library copy (which, if done with care, is better quality than even the U Mich. version) when Google's is the only one I can find on-line.

    However, scanning physically stresses these old books. I think it is sad that I have to repeat what Google has done, when they (presumably) could have scanned them with high quality with a little more effort or better equipment with automatic focusing. In some cases, the books have been in the rare book section of the university library, which can't be checked out, and making copies of the whole book locally is frowned upon because of possible damage and sometimes, depending on the book's condition, not allowed.

  16. Re:We should be used to it by now on Why Facebook Won't Stop Invading Your Privacy · · Score: 1

    When Facebook announces new privacy-preserving settings for its users, what they mean is "we have implemented a new zero-day exploit that will allow hackers to steal all your info with a simple script and sell it all off on the internet with very little effort."

    s/zero-day exploit/API/; s/hackers/business partners/

    True, hackers will also occasionally discover how to do it, but that of course isn't intentional, since there's no profit for Facebook.

  17. jucheck.exe and "Unknown publisher" on A Tidal Wave of Java Flaw Exploitation · · Score: 1
    Windows 7 kept nagging me off and on for weeks saying "jucheck.exe" was from an "Unknown Publisher" and asking whether I wanted to let it modify my system. I kept saying "no" because I'd never heard of this program (I don't use Java very often) and didn't have time to research it.

    When I finally had some time (and was fed up with the nagging), I typed "jucheck.exe unknown publisher" in Google. I waded my way through the hits warning me that it was probably a virus and that I should do a "free scan" with their anti-virus software (any .exe seems to bring up these scams). After reading some forums, I began to feel that it was probably OK, although I didn't find a crystal clear answer that made me totally confident. I was a little nervous when I finally allowed it to run, but it seemed to install the Java update OK.

    I don't know how the "cautious" average user is supposed to deal with this. (Of course, an ordinary average user would just let it run, which is why they get viruses.) Why do they give it such a cryptic name? What's the deal with the "Unknown publisher"?

  18. Math and youth on Benoit Mandelbrot Dies At 85 · · Score: 5, Interesting

    Defying the notion that mathematicians are over the hill at age 30, Mandelbrot made his fractal breakthroughs when he was in his 50s. It gives the rest of us some hope. :)

  19. Re:They should be doing exactly the reverse on Long Island Town Enacts Tough Cell Tower Limits · · Score: 5, Insightful

    Also, in order to communicate with the distant tower, the actual cell phone (the thing that delivers the most radiation to your head) must boost its power.

  20. Re:Forward thinkers on When the Senate Tried To Ban Dial Telephones · · Score: 1

    Their margins are often 0, or negative. They make their money by not paying for merchandise on delivery, but a few weeks later.

    So how does this make them money, with today's absurdly low interest rates?

  21. Re:Because the US Gov't is interested in WikiLeaks on MPAA Asks If ACTA Can Be Used To Block Wikileaks · · Score: 4, Interesting

    The MPAA (probably) isn't asking about WikiLeaks for its own interest ...

    Or, maybe they're thinking ahead to the day when an insider leaks some "creative accounting" ledgers. :)

  22. Re:touchscreen keyboard? on Acer Dual-Screen, Multitouch Laptop Leaks Out · · Score: 1

    This is one of the reasons I probably wouldn't buy such a computer. A removable, transparent silicone-rubber mat, with holes corresponding to the touch screen keys, while not perfect, might make a difference to a touch-typist like me, since you could at least find the keys by feel. But I've never seen or heard of such a thing, even for the iPad. Does anyone know if something like this exists?

  23. Re:Open your wallets on Orchestra To Turn Copyright-Free Classical Scores Into Copyright-Free Music · · Score: 2

    My prediction is that the lack of copyright will help CD sales rather than hurt them, because removing restrictions adds value. I, for one, will be happy to pay for a high-quality CD that, for the first time in my life, I actually own in every sense of the word, with which I am free to do whatever I please, whether it is to use excerpts in for a home video, use as part of the background music in a school play, or anything else with no cares or concerns about legal issues. In fact I'll probably buy their entire collection.

  24. Arxiv version of the original paper on New Calculations May Lead To a Test For String Theory · · Score: 2, Informative
  25. Re:Great news on It's Official — AMD Will Retire the ATI Brand · · Score: 1

    The propagation of electrons in copper is about 2/3 that of light speed in a vacuum, which on the time and length scales we're using in computers, is quite significant.

    This is wrong on two counts.

    (1) It has little to do with copper. The reduced propagation speed in a copper cable is due to the dielectric constant of the insulating material. If the copper cable were made of conductors in a vacuum, the propagation speed would be essentially the speed of light (although not quite, due to secondary factors such as skin effect attenuation of the higher frequency components of a waveform, which would slow down e.g. the arrival time of the midpoint of a square wave).

    (2) What propagates is an electromagnetic wave (field), not the electrons. The electrons themselves propagate very slowly in a wire with current, perhaps a few cm/s, and in a cable with zero net current their average propagation velocity is zero.