“Nature devours us. Icy winds and rain and salt and snow erode us, decompose us, reduce us to molecules, carbon compounds; the… — Bea Uusma Copy Share Image
“Except for hydrogen, all the atoms that make each of us up—the iron in our blood, the calcium in our bones, the… — Carl Sagan Copy Share Image
“The hydrogen atoms in a human body completely refresh every seven years. As we age we are really a river of cosmically… — Kevin Kelly Copy Share Image
Two hydrogen atoms meet. One says, 'I've lost my electron.' The other says 'Are you sure?' The first replies, 'Yes, I'm positive.' — Nikhil Saluja Copy Share Image