What makes oxygen so life-friendly?

Nothing. Oxygen is not friendly to life. Not at all. When life originated on this planet, there was no free oxygen in the air. Oxygen didn't become present until Cyanobacteria, the first oxygen…

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Was Einstein as smart as we make him out to be?

No. He was more of a genius. If you don't have a degree in physics, it's probably impossible for you to comprehend just how outrageously smart he was. He made important contributions in basica…

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