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User: Twinbee

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  1. The real question is how arbitrary maths can be on Is Mathematics Discovered Or Invented? · · Score: 1

    Has to be discovered really. However, there are various degrees to how arbitrary or how 'beautiful' mathematical concepts can be.

    An alien race is likely to also use the majority of our 'foundation' concepts. As the theory gets more fuzzy and more complicated, there may be various other ways, and perhaps some of these ways are less elegant and more arbitrary than other ways. However, it's still possible to get elegant AND complicated mathematicss.

    A good example is the Mandelbrot set. I don't we think we invented that shape ;)

  2. Re:Everything is Art on Nanomicroscopic Image Or Modern Art? · · Score: 1

    Yes, it could be said 'everything' is art, but that are varying degrees of quality to each 'piece'. Most postmodern art just happens to be crap (with a few exceptions).

  3. Re:what other ideas of his will come to pass? on DARPA Working On Arthur C. Clarke Weapon Idea · · Score: 1

    Haha nice one =P

  4. Re:what other ideas of his will come to pass? on DARPA Working On Arthur C. Clarke Weapon Idea · · Score: 1

    That's okay - count it like a game of bumper cars in 3D! =D

    Seriously, space is really big, and also the 'repelling magnet' type action can start repelling from a far distance so you don't really notice the fact that your course has veered in another direction.

  5. Re:what other ideas of his will come to pass? on DARPA Working On Arthur C. Clarke Weapon Idea · · Score: 3, Insightful

    Yes, it's that, and not at all the fact that we're having trouble stabilizing the design (keeping it upright), or the fact that they're too noisy and fuel costly.

    The problem you mentioned could easily be solved by incorporating an onboard computer so that it keeps a minimum distance from other dirvers and buildings. The driver could still actually drive the thing, but it would repel like a magnet from other vehicles thanks to the "3D radar" type equipment.

  6. Re:Not all use is illegal on Many Scientists Using Performance Enhancing Drugs · · Score: 1

    Obviously, you're posting anon, but contact me at some point in the future (say 1 or 2 years down), and if I'm fairly rich by then, I'll see what I can do to help.

  7. Re:Fairness on Many Scientists Using Performance Enhancing Drugs · · Score: 1

    Maybe because if we rely on performance enhancing drugs like this, we won't naturally evolve to a better level (through selective evolution etc.). Instead we will always need the drugs to be at that level.

    It's the same principle with face/body surgery. People make themselves look more attractive, but that defeats evolution again, which has got to be a bad thing in the long run.

    What do you think?

  8. Black on grey on What Font Color Is Best For Eyes? · · Score: 1

    Black on grey. Always black (or white) on mid to light grey (or colours thereabouts). The old Amiga used this scheme for its interface and it's not hard to see why.

    You get good text/bg contrast, but pictures white and text with white in stand out much better. If you have a white background, you can't get any 'whiter', so you're losing lots of contrast possibilities. (see website below for how good it looks)

  9. More power needed Scotty on Micro-Projectors May Bring YouTube On-The-Go · · Score: 1

    And this is exactly the kind of device that needs 10x more battery life than our best batteries, and 10x more efficient light output for bulbs.

    Roll on radioactive batteries is what I say.

  10. Re:Minor information on A Super-Efficient Light Bulb · · Score: 1

    I see what you mean about the lumen being human tweaked. Can you have a quick read of my post here and tell me what you think:

    http://www.candlepowerforums.com/vb/showthread.php?p=2415085#post2415085

  11. Re:LED lighting on Questions Arising On Mercury In Compact Fluorescents · · Score: 1

    I've just noticed something about it, and was just wondering if the same thing happens with yours. There's a slight "pink noise" sound coming from it. It sounds a bit like when you boil a kettle, but fainter and higher pitched. When I disconnect or connect power, the noise gradually fades in, and fades out respectively over about 4 seconds.

    Does the same thing happen with yours? Unfortunately, I don't know if the sound was there when I first switched it on (I had it on for a good few hours at the time). It's quite faint, so I need to be within a metre to hear it.

  12. Re:LED lighting on Questions Arising On Mercury In Compact Fluorescents · · Score: 1

    Got it today, and wired up. It didn't explode and here's a photo :) The bottom left area you can see my laptop screen. The top right you can see through the window slightly (half cloudy day at 5:30pm in UK). Hope it's okay in the wooden table like that. There are metal grooves, as though it is meant to sit on the floor if need be. After a while, the table gets very warm, but not too hot too touch.

  13. Re:It actually works that way, yes on Scientists' Success Or Failure Correlated With Beer · · Score: 1
    • Consuming large amounts of alcohol will destroy nerve cells and damage other tissues, and you cannot recover from that
    Would that translate to one night of merely getting drunk, one night of getting 'very drunk' (which people often do I guess), or actually drinking heavily for weeks on end?
  14. Re:LED lighting on Questions Arising On Mercury In Compact Fluorescents · · Score: 1

    Thanks for that. I bought myself something similar - a quartz halogen 1000w floodlight:
    http://www.toolmix.com/browse/product.asp?gid=937&pid=72008

    I suppose I'll miss the 6500 colour temperature of the CFL, but at least the halogen is whiter than the orangey incandescent bulbs. Can't wait for it to arrive - I intend to put it on a highish cupboard (say 1.5 metres). Hopefully, tilting the light not straight upwards, but at a 45 degree slant, will cover the ceiling without dazzling us if we look in its general direction.

    Unfortunately, the brightest CFLs are incredibly difficult to get hold of (need to order bulk from China, and even then they're only 200W, or about half as bright as the 1000w halogen as an estimate (if we consider that halogens are half as efficient)).

  15. Re:Where are the flying cars? on What Will Life Be Like In 2008? · · Score: 1

    It's pretty simple. Either the flying cars will drive themsevles. Or more preferably, each flying car will 'repel' from other cars/buildings at a force proportional to its distance from that car/building.

    Depending on their relative speeds, this slowdown/reversal would take place at the appropriate distance.

  16. Re:LED lighting on Questions Arising On Mercury In Compact Fluorescents · · Score: 1

    Okay, can you just give me some specs then...

    I.e. is it spotlight or floodlight?

    If you have it pointing towards the ceiling from the floor, then do you get dazzled when you walk in/out the room, and look at the bulb?

    Any of the lumens count? Does it make your room as bright as a supermarket setting would be? I've just ordered a halogen 1000w myself, and it should be arriving shortly :-D I find even 300 watt equivalent bulbs quite dull, so it'd be great to get sunshine levels of brightness indoors.

  17. Re:Commercial use on A Super-Efficient Light Bulb · · Score: 1

    Not sure about your stats if we look at Wikipedia. Assume the new bulb is 50% efficient at generating light, then a standard incandescent bulb is actually only around 5% efficient. 95% of the energy is converted to heat.

    Additionally, the new bulb they've created is actually more like 25% efficient (I know perfect efficiency (683 lumens per watt) is only for green monochromatic light, but even so).

  18. Re:LED lighting on Questions Arising On Mercury In Compact Fluorescents · · Score: 2, Informative

    They're hardly super bright though.

    The brightest there puts out about 400 lumen, while a standard 100 watt incandescent puts out 1700 lumens.

    Thanks, but I might stick with my 85w CFL which emits about 5000 lumens.

  19. Re:LED lighting on Questions Arising On Mercury In Compact Fluorescents · · Score: 1

    I live in the UK. Can you do me a favour, and suggest a shop page for me that sells a halogen light of similar brightness which I can point towards the ceiling?

    At the moment, I use an 85w CFL (equiv to about 400w incandescent), but I'd like it as bright inside, as it is outdoors (or at least approaching that).

  20. Re:LED lighting on Questions Arising On Mercury In Compact Fluorescents · · Score: 1

    How many lumens though. Is it equivalent to 100w incadescent?

  21. Re:Damn you samzenpus on Scientists Create Room Temperature Superconductor · · Score: 1

    Can we use a voting system to decide the headline. I'm sick and tired of these misleading titles...

  22. Re:It actually works that way, yes on Scientists' Success Or Failure Correlated With Beer · · Score: 1

    But would your IQ go back to normal if you (gradually) stopped drinking altogether?

    If so, what's the 'tipping point' for alcohol consumption, where you can't get your brain back to how it originally was?

  23. Re:One Major Disadvantage, however... on The Joy of the Flash Drive · · Score: 1

    Do you have any actual benchmarks, so I can look back at this thread, and see flash speeds gradually creep up to the speeds of RAM over the coming decades?

  24. Re:One Major Disadvantage, however... on The Joy of the Flash Drive · · Score: 1

    How does flash compare to standard RAM in terms of the stats below:

    1: Random access write
    2: Random access read
    3: Serial write
    4: Serial read

    (I'm guessing those are the important metrics - please add if appropriate).

  25. Re:I like it. on The Joy of the Flash Drive · · Score: 1

    Why can't you just cover it, colour over it, or somehow filter it?

    You can't do that so easily with noise, which is a much bigger problem, especially with the noisier hard drives.