Do Identical Twins have Identical Fingerprints ?

Identical twins come from the same sperm and egg – and thus have the same DNA – ie EXACT identical genetic makeup. So do they therefore have the same fingerprints? Or to put it another way would twins force Hercule Poirot’s “little grey cells” into overdrive in a murder investigation ?

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Why Can’t We Travel Faster than the Speed of Light

Why Can’t We Travel Faster than the Speed of Light? – This might be news to some of you but if you’re familiar with Einsteins theory of relativity, and that most famous of equations E=mc2, you’ll understand the limitations imposed by the equation. But exactly why should it be like this ?

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The First Cities

Thursday July 12 2007 was a seminal day (apparently). On that day the a United Nations report, that coincided with World Population Day, revealed that for the first time in history, more people were now living in cities than rural areas. But how did this come about ? In this artice we look at the key argricultural and technological developements needed for this to happen.

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