Recent content by imported_Hamzter

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    Regarding Space surrounding the earth

    You'd fart. :P I read while back about a guy that actually survived being in a vacuum for 30 seconds, i think it was for testing a suit or something, it was damaged and he lost pressure for 30 seconds before they were able to repressurise the vacuum chamber. Alot of the common myths like...
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    antimatter weapons

    I doubt the energy release would be linear, as soon as the first bit of antimatter reacted with matter it would release radiation and heat the rest of the antimatter, which would expand at a huge rate, the hotter the antimatter gets the faster it's travelling and the faster the reaction. Granted...
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    antimatter weapons

    You realise that they don't exist right? You'll probably never see any kind of weapon in the form of a gun if that's what you're hoping, the only possible use for antimatter is a bomb, and one hell of an unstable bomb at that. They're unlikely to ever be practical though, since the antimatter...
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    Pressure at the center of the Earth?

    Interesting thought, I suspect the pressure would rise dramatically as you drop, there'll be a point where the air could be approximated to be incompressible (if we considered it compressible at 360GPa then its density would be in the region of 4 million kg/m3 according to ideal gas laws!!). It...
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    how does an SLR outperform a non-SLR

    So DSLR cameras still use a mirror, right? does this mean it actually has 2 sensors in it, one for the image capture and one for the preview? or do they just not give you a preview and you use the viewfinder?
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    Absorbtion of microwaves in water

    Hi, basically i have a piece of coursework in which a potato is being heated in a convention oven and also a microwave, I've got to model the system using finite difference heat transfer equations. I've done all that fine, the only thing I can't get is the heat generation in a microwave. Now...
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    The moon, you and a little red button

    If you don't have an unexplainable urge to destroy the moon, there's definitely something wrong with you. :)
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    The moon, you and a little red button

    Well earths escape velocity is about 11.2km/s, and the moon has a mass of 7.36 × 10^22 kg, with a velocity of 3,700kmph (1030m/s). That means you'd need about 3.806x10^30 J of energy to knock it out of orbit. That's about 910 exatons TNT, quite a long way short of a yottaton TNT. That's assuming...
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    A space centrifuge...

    Hehe, I know the idea's been around for a long time, I couldn't tell u who first thought it up though. I don't think there's enough benefit from building one at the moment when weighed up against the cost, altho spinning a station on the end of a long cable with a counterweight on the end might...
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    A space centrifuge...

    I was thinking the other day about how feasable a spinning disc (like in Halo...) or torus would actually be. I'm talking about a relatively small scale one, less than 100 meters in diameter, anything bigger would be quite weighty and very difficult to build. After thinking for a while, i...
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    why can't heat be used to create energy?

    Isn't there a simple solution to this, by keeping the water in a vapour phase? Burning fuel creates water anyway, and that doesn't do much damage because it's superheated...
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    Case = heat = energy?

    As already stated, it's impossible to power your own computer (unless it was a superconducting computer, which could be interesting, although still very unlikely that would work). If you wanted to collect the waste energy, it'll be a pretty feeble ammount. The maximum efficiency of a generator...
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    Why "60 Terahertz" for conciousness ?

    I don't think you can assign a speed to a brain, since it's not a digital system. People have tried many times to approximate its speed, which vary a huge ammount. If you measure speed as the number of chemical reactions contributing to thought it may well be in the terahertz range, but if you...
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    Which color is the fastest?

    Well according to this advert from the 1990s, the blue car won (because the red car just couldn't carry on). End of discussion :P
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    about downloads

    Yeh, it's only with progressive jpgs it does this I believe. Progressive jpgs save alternate lines first, then the ones in between, so you can get the idea of what the whole picture's going to look like while having downloaded only a half of it, although it means the picture has low detail until...