Many years ago I asked my brother, an astronomer, this question. I expected to hear “millions” or even “billions”. A big number, surely, but just remotely possible to comprehend. He shrugged somewhat apologetically and admitted […]
In just the last century and a half, mankind has harnessed two transformative energy sources, electricity and petroleum. Envision the world as it existed before that. Without electricity, information moved no faster than a horse could travel. […]
“You’ll never hear the bullet that kills you.” True. And by the same token, you’ll never see the disease that ends your life. Tiny and pervasive, the viruses and bacteria and fungi that invisibly permeate the […]
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