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POPSPioneering Physicist John Wheeler Dies at 96 a real genius, if i am not mistaken he was Hugh Everett III's professor of physics, also he is the one the suggested the 'delayed choice' experiment that showed the experimenter can choose, AFTER THE FACT, whether the photon was in both places or just one.
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POPSClues To Ancestral Origin Of Placenta Emerge In Genetics Study They found that the placenta develops in two distinct stages. In the first stage, which runs from the beginning of pregnancy through mid-gestation, the placental cells primarily activate genes that mammals have in common with birds and reptiles. This suggests that the placenta initially evolved through repurposing genes the early mammals inherited from their immediate ancestors when they arose more than 120 million years ago.
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