Seventy-three easy experiments — requiring only materials found at home or easily available, such as candles, coins, steel wool, etc. — illustrate basic phenomena like vacuum, simple chemical reactions, and more. All safe. Modern, well-planned. Unabridged republication of the original (1963) edition.
Calculator Puzzles, Tricks and Games by Norvin Pallas Perform amazing feats of mathematical magic, answer clever riddles, solve a baffling murder and much more with this clever introduction to calculator games. Answers included.