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colinha

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colinha
It has recently been found that the reason that humans have two less chromosomes than other great apes is due to a merging of two chromosomes into one in the past. So we have 23 pairs not 24 as in...
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eltelioni
Continuing here because colinha's question is closed. (Why?) I don't agree that this has been done to death. Although there are practical difficulties with interstellar travel I see no objection to...
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colinha
How long would it take from the frame of reference of the crew to get to a star system 40 light years away at a constant 1g accelleration. Does time dilation make colonisation a real possibility or...
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nix-j-c
i reckon that humans have stopped evolving because of technology ie medicine allowing many more people to survive rather than survival of the fittest. but if technology was developing slower than the...
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colinha
Electric force charges on quarks are +2/3 and -1/3 for up and down variants. The charge on an electron is -1 Quarks balance in groups of 3 to give a net charge of +1 or zero in nuclei in atoms. The...
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colinha
According to some variants of String Theory, we are living on a 4 dimensional membrane in a 10 dimensional bulk space. Gravity appears weak because it is the only force that leaks out of our membrane...
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colinha
The size of the observable universe is bounded by the distance that light has had time to travel to us. An observer in the Andromeda Galaxy would have a slightly different observable universe to ours...

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