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User: john83

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Comments · 469

  1. Re:A Scentsor? on Steak-Scented Billboard Entices Drivers · · Score: 1

    Because you'd need a way to synthesise arbitrary chemicals.

  2. Re:Something important to remember on Artificial Cornea To Reach Patients This Year · · Score: 2, Funny

    For example, an artificial cornea could be made to block UV rays or even be polarized. I'm still waiting for telescopic vision corneas but I doubt that will happen. But the idea of having built-in sunglasses is interesting to me... not that I would have it done unless it were necessary to replace my cornea anyway...

    Certainly, a UV filter seems plausible to me. However, you normally use two lenses to make a telescope, so unless it could form some very exotic diffractive object, I think you'd need at least a pair of thick glasses to make a telescope. You might be able to make a magnfying glass though.

  3. Re:Jackson, overrated on The Hobbit On Hold · · Score: 1

    Let's just say that he did ok, hmmm?

    He translated a celebrated book which was considered unfilmable into a commercially successful, oscar-winning film, introducing the book to a huge number of people who would otherwise have never considered reading it. Yeah, he did "okay".

  4. Re:I'm glad that plagiarism is not illegal. on In Argentina, Law Against Plagiarism Plagiarized · · Score: 4, Interesting

    Is there really room for crediting wikipedia in a legal bill? That seems silly to me. A law isn't an artistic endeavour. It has no direct commercial value. Applying the notion of IP to it makes no sense. I would have thought that the groupthink on Slashdot would lean towards disgust at this assumption of the blanket application of IP as a concept, but perhaps schadenfreude comes first.

  5. Re:From the same guys... on Oil Leak Could Be Stopped With a Nuke · · Score: 1

    The statistic applied not to the whole war as you have assumed, but rather to the dying months of the war when the Germans were being rolled back through Eastern Europe. I should have been clearer.

  6. Re:From the same guys... on Oil Leak Could Be Stopped With a Nuke · · Score: 2

    What was their alternative?

    They didn't have firepower or mechanized armor that could match what the Germans had. But they did have many, many people.

    Regardless, their technique worked. In fact, it worked so well that they alone were responsible for much of the damage that Germany sustained.

    Very true. One of the most pants-wettingly terrifying statistics I've heard in relation to it was that for every two Russians the Germans shot, another eleven appeared on the front. That sounds like something out of a zombie movie.

  7. Re:Quantum computers aren't X times faster. on 1 Molecule Computes Thousands of Times Faster Than a PC · · Score: 1

    I really hate it when people come up with the simple "Quantum computer 1000 times faster than conventional computer". It's not just overly simplistic, it's wrong.

    Quantum computers can turn some problems that require exponential time to solve into a polynomial time. So instead of taking 2^n time, it might take n^3 time. That's cannot in any realistic way be described as being "X times faster".

    Okay, so what's the story here. A 1D FFT is an O(N log N) calculation. What complexity have they turned it into?

  8. Re:Thats cheating on 1 Molecule Computes Thousands of Times Faster Than a PC · · Score: 1

    Yeah. The chokepoint on this seems to be the speed at which you can modulate your input - the spatial light modulators I've worked with only update at tens of Hz, and I think the state of the art isn't very much faster. There's also noise to take into consideration. From what I've heard from older optical researchers, optical computing at that scale was exciting in the 70s or thereabouts, but whether it had the potential to rival transistors or not, it's long been left by the wayside by Moore's Law.

  9. Re:Not Very Accurate on Brain-Scan Lie Detection Rejected By Brooklyn Court · · Score: 1

    It's certainly not good enough for a conviction. I'm not clear why that means it shouldn't be considered though. If a witness indicates that the perpetrator of a crime was blonde, that's weak evidence against a blonde defendant. It's admissible. Is the problem that juries are likely to give too much weight to these kinds of evidence? That doesn't seem to have been the judge's problem in this instance.

  10. Re:I'd pay it on Rumors of Hulu's Subscription Plans · · Score: 1

    I'd pay for it if they made it available outside the US.

    I wouldn't. I lived in the US for a while, and the streaming from Hulu was the worst I've seen for years. Not a patch on youtube, for instance.

  11. Re:Goodbye Internet on Ireland May Be Next To Censor the Internet · · Score: 1

    So tell me, Ireland, if I stand out in the middle of, say, Dublin's Victoria Quay, and yell out "Jesus sucks!", would I really get taken to jail?

    No. No one intends to enforce the law. The minister for justice argued that he had to replace the existing law (which was struck down in court in the 90s) because the constitution requires it (it was written in 1937 by a religious man and is rather showing its age). However, no one has been prosecuted, not even Atheist Ireland, who published 25 blasphemous quotes in order to test the law in court. The minister in question has indicated that he may allow the relevant part of the constitution be removed in a referendum later this year given the organised backlash against it. The whole thing has been a farce.

  12. Re:Asinine... on Ireland May Be Next To Censor the Internet · · Score: 5, Interesting

    Each religion blasphemes the deities of the others, even in subtle ways. Muslims blaspheme Jesus Christ by denying his divinity to Christians. Christians blaspheme Yaweh in the eyes of the Jews by calling Jesus his son. Both blaspheme Allah in the eyes of the Muslim by most of their beliefs about Mohamed and their religious texts.

    Yeah, we know.

  13. Re:Goodbye Internet on Ireland May Be Next To Censor the Internet · · Score: 3, Interesting

    Given our record on this sort of thing, the ISPs here will cheerfully comply.

  14. Re:Let it go on Dwarf Planets Accumulate In Outer Solar System · · Score: 3, Interesting

    Actually, our own moon is a planet according to their definition - it's over 3000 km across. As I understand it, it's not currently classified as one because the earth-moon system's centre of gravity is inside the earth.

  15. Re:Great! Now we can call it something else! on The Technology Behind Formula 1 Racing · · Score: 2, Interesting

    Yeah, looks like it's more like 2-3 kg ([1] gives 2-3 l of water), which is comparable to what a professional soccer player will lose in a game [2] (which is only a simulation, but I've heard pro players in interviews mention weight loss of up to 4kg in matches in hot conditions). F1 is physically difficult, no doubt, but I'd expect a weight loss of 2 stone over a couple of hours to be pretty much fatal.

    [1] http://www.f1complete.com/content/view/2672/392/
    [2] Nicholas, C.W., Nuttal, F.E. and Williams, C. (2000) The Loughborough Intermittent Shuttle Test : A field test that simulates the activity pattern of soccer. Journal of Sports Sciences 18, 97-104.

  16. Re:I'm paying for WHAT? on Microsoft VP Suggests 'Net Tax To Clean Computers · · Score: 1

    Relax. You're just trading one overhead for another.

  17. Re:Still gonna suck. on Dune Remake Could Mean 3D Sandworms · · Score: 1

    I would agree that a literal interpretation is unfilmable. There's just too much internal monologue and too much exposition to convert easily. I think it needs a Blade Runner style adaptation - find the ideas and images you want to use, and write a movie.

  18. Re:Mr Ahern? on Slovak Police Planted Explosives On Air Travelers · · Score: 1

    They're referring to Dermot Ahern, Ireland's current Minister for Justice.

  19. Re:Five year old news? on Fifth Anniversary of a Cosmic Onslaught · · Score: 5, Funny

    Someone here has to submit the story to the slashdot servers. Assuming it's accepted immediately, as the standard of editing suggests, someone who sent a page request for the frontpage just after the submission would see the story when the frontpage got back to him. His request for the story then has to be propagated to the server, which has to reply. This means that the server is not more than 1.25 light years away from Earth. Clearly, you must be new here.

  20. Re:Ha! That'll show them hippies! on Scientists Step Down After CRU Hack Fallout · · Score: 1

    You're reaction is hilarious because you refuse to look at any facts or allegations.

    Er, the gp post is clearly satirical. It's even been moderated funny. And it's "your". Step back, and take a deep breath. Emotive reactions to this subject are the enemy of scientific debate.

  21. Re:Remix on GE Developing 1TB Hologram Disc Readable By a Modified Blu-ray Drive · · Score: 1

    Yeah, I was at their talk in Optics + Photonics 2008. They seem to be mostly focussed on competing with hard drives rather than discs.

  22. Re:Remix on GE Developing 1TB Hologram Disc Readable By a Modified Blu-ray Drive · · Score: 1

    This is correct, though you lose resolution, so there's a trade-off between how much data you can store and your resistance to damage of the grating. Also, I'm not sure exactly how they're writing these things - surely each grating won't be over the whole disc? That would mean reading very large pages each time you want to read something, which would lead to a bottleneck - you grab a huge chunk of data, but you have to pick out the bit that you really wanted to read.

  23. Re:Remix on GE Developing 1TB Hologram Disc Readable By a Modified Blu-ray Drive · · Score: 3, Interesting

    How many MB will be wiped out by a pathetically small scratch on the disk? Remember the promises made of audio CD's?

    You're assuming that in order to fit more data on the disc, they've just shrunk CD technology. That's not the case. Holographically stored data are spatially distributed. I'm not sure exactly how they handle damage, but I think a "pathetically small scratch" would have a pathetically small effect on the replay.

  24. Re:Summary is wrong on Published Google Docs To Appear In Search Engines · · Score: 1

    Me too. The summary says this may take a lot of people by surprise, but I think very few people will have determined that those documents aren't searchable once they're linked to externally.

  25. Re:3 Days Turnaround on "Going Google" Exposes Students' Email · · Score: 4, Informative

    It's a safe bet that that's only a few hours after they found out, and 3 days after the first student did.

    That was my thinking too, but TFA says that the students notified their admin on the Friday, who notified Google on the Saturday, who fixed it on the Tuesday. It's not clear - bad writing - but they may have suspended the service on the Monday.