Index Entry
Air:
“I’m just going to throw in some figures I find very startling. Have any of you any idea about the weight of air? Do you have any feelings about the weight of air? I have a 100-foot sphere full of air, 10 stories high. Somebody tell me quickly the weightof air in a 100-foot-diameter sphere. Everybody averages about three pounds of food a day; some way overdo that. We take on also about eight pounds of water and every one of you breathes and combines with that food and water 84 pounds of air a day. This is your really big food. I think it’s simply astonishing. The sphere full of air-- there’s seven tons of air in it. Air weighs plenty.”
