For the confused layman who says ""Never mind all the details, just tell me what the atom is-- and what's energy? and while you're at it- how does penicillin work? how do insects walk on water? what's the best way to pull a car out of a ditch? who is the man in the moon? how do you tell Greenwich time? can you teach anything to a worm?""- here are some non-technical, edifying answers. The questions are a jumbled miscellany- ranging from the toughest nuts of science to the idlest quandaries of the housewife, and the answers are deliberately superficial, with droll touches, more likely to plunge the truly quizzical into deeper wonder-than to rescue him from his present curiosity. But there is a friendly seriousness in the handling and the answers extend as far as elemental simplicity will permit. For an interested, uninformed general audience.