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Science  15 May 1998:
Vol. 280, Issue 5366, pp. 975
DOI: 10.1126/science.280.5366.975d

Early stargazing. Find lessons on the universe and space travel, puzzles, biographies of scientists, and more on Starchild (, an award-winning NASA site for teaching elementary and middle school children about astronomy.

American ingenuity? Check out the Pat-on-the-Back Apparatus, a recipe for egg jerky, the Sanitary Appliance for Birds, and other bizarre inventions at the Wacky Patent of the Month.

Numbers game. How many stable towers can you build from n Lego bricks? The answers for n = 1, 2, 3 … are given by the series: 1, 3, 7, 19, 53, 149, 419, …. Intrigued? Peruse the On-Line Encyclopedia of Integer Sequences, useful for crystallographers, physicists, mathematicians, and any numbers fan.∼njas/sequences/index.html

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