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User: drerwk

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Comments · 595

  1. Re:How far... on Most Distant Object Yet Detected, Bagged By Galileo Scope · · Score: 1

    I understand the last scattering due to electron reabsorbtion - or de-ionization. But I am not familiar with "The universal last scattering was a vaguely similar event, in that matter became sufficiently dispersed (due to the expansion of the universe) that light could now travel long distances without interacting with matter. Obviously this was not instantaneous, but on cosmological scales, it was pretty quick."
    Can you give me a link?

  2. Re:Not really the oldest event ever seen - CMB on Most Distant Object Yet Detected, Bagged By Galileo Scope · · Score: 1

    Unless we can detect gravity waves from before the decopling.

  3. Re:Useful and Needed on DARPA's Map-Based Wiki Keeps Platoons Alive · · Score: 1

    Duck. You want to work on technology that might help when you get back to the States? I'm in the Boston area. andrew dot kaluzniacki at baesystems dot com

  4. Re:Awesome on World's First X-Ray Laser Goes Live · · Score: 1

    As I recall, the scatter angle is a function of wavelength, so having a single wavelength should make for a much sharper picture.

  5. Re:Of course we don't need running shoes on Do We Need Running Shoes To Run? · · Score: 1

    It tasted awesome - though I don't eat enought elk to know the difference.

  6. Re:Of course we don't need running shoes on Do We Need Running Shoes To Run? · · Score: 5, Interesting

    I did not get much from the link. But I met a guy once who hunted elk by walking them to death. It took he said about three days; an not much running. The the elk would be too exhausted to get up and he would kill it with a knife.

  7. Re:I see a problem... on Curved Laser Beams Could Help Tame Lightning · · Score: 1

    Mirrors are cheap. Beam goes along near the ground to the mirror, which is surrounded by lighting rods.

  8. Re:May hold? on STEREO Spacecraft To Explore Earth's L4 and L5 · · Score: 1

    The L4 and L5 of TFA are the ones formed between the Earth and Sun - not the Earth and Moon.

  9. Re:Wrong on North Korea Missile Launch Fails · · Score: 1

    I have been wondering myself how much damage a couple of Aegis Radars at 4 MW each could do to the electronics on board. Not much I thought at first, but if there were antenna sending back telemetry, then maybe a bit more of a coupling would be there for the radar to cause problems.

  10. Re:Theory versus Practice on NVidia Considering Porting PhysX To OpenCL · · Score: 1, Interesting

    Sign up for ADC (for $500) and use the hardware discount. It'll be about 20% off the Apple retail price and you get all the latest developer goodies. If you intend to use OpenCL and the latest Apple OS, the only reason to build a Hakintosh is if your time is free. If that is the case then no problem. But I can't see running into a problem and sitting there wondering - is it Apple's new OpenCL, or is it my machine? And if you are ADC, then you can send Apple a trouble ticket - and maybe even get an answer.

  11. Re:I call bullshit... on The Underappreciated Risks of Severe Space Weather · · Score: 1

    Pillage the dead transformers.

    The line transformers I've seen fail left only a vapor of copper atoms and some burning transformer oil.

  12. Re:Inherit problem of touch screens on Mobile Gaming and the War On Fat Fingers · · Score: 1

    In writing Repton - I worried about this. But I put the controls away from the map center and entirely off of the main view. So if you are in the action you would not want to pick up your fingers and other wise it is OK to do so.
    So far the uses seem to like it.
    I also think that the accelerometer is easy to overuse.

  13. Re:My mileage differed on Ballmer Scorns Apple As a $500 Logo · · Score: 1

    There was a time between say OS 6 and OS X that I might have preferred NT 4.0. As my work became more complex, lack of memory protection became too painful. But a fair amount of my work at that time involved what we might now call Rich Text display, and getting the Mac OS to show the same thing on the screen and on a printer and in enough fonts to make my customers happy was all around easy. I only had one real problem where the Image Writer and the Laser Printer had different kerning, and I could not for the life of me tell programatically which one was going to be used.
    I had to do some Win95 DirectX programming and it was just as easy to hose the system with a bad call as it was in OS 9.
    Right now I would prefer a Mac at work because Corporate IT mandates McAffee - which bogs down Eclipse as they seem to assume everything I write is a virus.

  14. Re:Not clear if sandbox was breached on First Pwn2Own 2009 Contest Winners Emerge · · Score: 1

    But it all ends with the browser session. You cannot read/write users' files much less compromise the machine.

    If you can execute in the applications context, I think you can write to the preferences files - even if the app is in a sandbox. At that point you might be able to save your hack and have it reloaded at start up. You might save your hack as file: //homepage.html and load that.

  15. Re:ETs in SPAAAAACE! on Did Bat Hitch a Ride To Space On Discovery? · · Score: 1

    ... it could have been the first animal (body) to make it up to space.

    I hope you are not forgetting Laika http://en.wikipedia.org/wiki/Laika

  16. Re:I'll give you a hint on National Ignition Facility Fires 192-Beam Pulse · · Score: 1

    And FYI, RTFA. The thing has a maximum theoretical payoff roughly ten to one in terms of input/output, which they're predicting by 2010. 2MJ goes in, 20 comes out. If they only manage half that, you still have a x5 payoff. Which is still a massive win.

    I think your counting is a bit off. To get a 2MJ pulse, about 400 MJ is going in. The lasers are Xenon flash lamp powered, and last I checked a good flash lamp laser was 2% efficient. The initial flash is frequency multiplied in crystals at 50% efficiency. You need to count the energy that goes into the building to run the laser before you get too excited. Add to that a peer post about building the target and the trying to then convert the output energy back to usable electricity.

    I don't think laser powered fusion is going to see net power gain any time soon.

  17. Re:Buy Repton on The Realities of Selling On Apple's App Store · · Score: 1

    I only have one physical disk - from 1982. I don't even have a complete set of final source code. And, Sirius used a clever copy protection mechanism: one track of the Apple II disk was formatted on an IBM PC. This track would read without error on the Apple, but the data would be random and different with each read. So we would check that track, and if it read the same way twice we knew it to be a copy. I would have to break my own game to get a good disk image, and I don't see the value in doing that right now. I'd rather spend the time working on the version I wrote for the iPhone - I prefer C/C++ to 6502 ASM.

  18. Re:Buy Repton on The Realities of Selling On Apple's App Store · · Score: 1

    I only know of one remaining original disk - and I run that on my Apple II+ every now and again. I don't even have all of the original source code to make a new disk.
    There are some good emulators: Virtual II seems very nice. Disks can be found with Google, or here http://mirrors.apple2.org.za/ftp.apple.asimov.net/images/games/file_based/

    I just found http://www.virtualapple.org/reptondisk.html and it seems an amazing presentation.
    I have not found an original version, all of these versions seem to be cracked versions, which given the copy protection is not surprising. Naturally my name and that of my coauthor appear nowhere in the cracked versions.
    BTW - The iPhone version is better :-)

  19. Buy Repton on The Realities of Selling On Apple's App Store · · Score: 0, Offtopic

    I am interested in the very same question. Repton on the App Store. Thanks!
    Mod me as you like.

  20. Re:apple developer on Apple's iPhone Developer Crisis · · Score: 1

    You need the $100 sign up to get the code signing certificates to run your App on a (non-jailbroken) device. The emulator is very good, but does not fully emulate the OpenGL ES implemented on the device nor does it fully emulate multi-touch or the accelerometer. And, if you are going to develope you really want to take the app with you for testing. You can learn the SDK for free, but I would say you need to the $100 sign up to really do complete development.
    ----
    Go buy Repton at the App Store - thanks.

  21. Cold is absolute - Hot is relative on The Lower Atmosphere of Pluto Revealed · · Score: 2, Informative

    Cold is an absolute term in that you can have absolute zero. Hot is a relative term in that there is no absolute hot, just degrees. Well maybe not - seems like the Planck temperature at 10^32 Kelvin might be an absolute hot. http://www.pbs.org/wgbh/nova/zero/hot.html Makes sense given a Planck length and Planck time.

  22. Meet the rant on Authors Guild President Wants To End Royalty-Free TTS On Kindle · · Score: 1
    Indeed they have already met:

    In fact, publishers, authors and American copyright laws have long provided for free audio availability to the blind and the guild is all for technologies that expand that availability.

  23. Re:Pirates! on Authors Guild President Wants To End Royalty-Free TTS On Kindle · · Score: 2
    +5 for not reading his rant:

    In fact, publishers, authors and American copyright laws have long provided for free audio availability to the blind and the guild is all for technologies that expand that availability.

  24. Re:A game? on An Early Look at the NASA MMO · · Score: 1

    http://www.simtractor.com/
    The funniest thing I've read in a long while was a post from a guy complaining bitterly that a bug in Simtractor caused him to lose a whole season worth of beats.

  25. Check your landing wieght on Space Based Solar Power Within a Decade? · · Score: 1

    You might want to check the max payload landing weight. I get $352,000,000 (US) as the value of gold at that weight.