1161
Guest Book / Peeing Standing Up
« on: 16/07/2009 22:46:44 »
Who could have predicted that this thread would run and run?
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1162
General Science / Why do office chairs have five wheels?
« on: 28/05/2009 18:49:37 »
Thanks for that, best giggle I have had in a while.
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1163
Plant Sciences, Zoology & Evolution / Re: What Would Happen To A Cow If It Was Not Milked ?
« on: 08/12/2008 19:26:32 »
The simple answer is that a cow which wasn't milked would probably be killed because it wouldn't be making money.
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1164
Famous Scientists, Doctors and Inventors / Who invented the dildo?
« on: 09/07/2007 21:58:42 »
"So there is no hysteria for boys"
No. the word's from the Greek for womb, so we aren't equiped.
BTW, I think the word dildo is derived from the Italian word meaning to delight.
No. the word's from the Greek for womb, so we aren't equiped.
BTW, I think the word dildo is derived from the Italian word meaning to delight.
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1165
Physics, Astronomy & Cosmology / Re: Can jumping upwards enable you to survive in a falling lift (elevator)?
« on: 19/06/2007 19:51:37 »
Batroost,
I often wonder why glass floored elevators are not more popular for just this reason. Just think of it as a "Unique selling point"
Of course there is another point. The question asked in the title is not quite the same as in the first post.
Q Would I survive in a falling elevator?
A Yes, just as long as it kept falling...
I often wonder why glass floored elevators are not more popular for just this reason. Just think of it as a "Unique selling point"
Of course there is another point. The question asked in the title is not quite the same as in the first post.
Q Would I survive in a falling elevator?
A Yes, just as long as it kept falling...
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1166
Chemistry / Why are metals shiny?
« on: 12/02/2007 19:54:29 »
Strictly it isn't a chemical reason. No reaction takes place. Anyway If I remember this rightly from long ago when I studied this sort of thing, the electrons in a metal are relatively free to move about (which is why metals conduct heat and electricity well). That means they have a lot of possible energy states and can absorb incoming radiation unusually well. Paradoxically, this is why they reflect the light. The absorbtion is very strong and the wavefunction of the photon is forced to fall to zero very abruptly. This rapid change in wavefunction is not easy to produce and the only way for the system to cope is to absorb the photon, then re-emit it immediately as a reflection. This isn't a very clear explanation and I hope someone comes up with a better one but, in short, it's the loose electrons that do it.
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