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1. What was before the big bang, and whee did that come from, and where did that come from, and what colour was space right at the beginning?
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If Stephen Hawkings and Einstein are right then before the Big bang came the Big Crunhc - Universe is expanding, eventually it will reach a point where the energy in it is so dispersed it can expand no further. At that point, many of the stellar objects will have decayed in to gravitional wells and/or black holes. Therefore gravity will be the overwhelming force within the universe and it will start collapsing matter in on itself. As the laws of entropy state that energy can be transferred but never destryed/created, then as the collapse occured all the original energies become concentrated and eventually the entire universe gets crunched down to the point where quantum forces exceed gravity, so it begins to expand again and so ad infinitum!!!
As for the colour, I think the accepted answer is purple!!! Something to do with redshift theory and the doppler effect on light emitted from stars from earlier galaxies. Would need to get my cosmology coursework out to look it up but can't be bothered!!!
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2. If penguins can fly under water, can you swim in the air?
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Yes if you can produce air of a density equivalent to that of water!! Suppose if could be possible if you substituted the nitrogen for another more dense gas - would need to be in a contained space tho!!!
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3. Who actually came up with the idea of bog roll?
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Joseph Coyetty in America in 1857. First marketed in the 1880's but the British perforated paper company. First appeared ina roll in 1907!!!
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5. What was the very first programme to be shown on tv?
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No idea - but the first live Outside Broadcast was King George VI's coronation in May 1937.