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Science 19 January 2001:
Vol. 291. no. 5503, p. 403
DOI: 10.1126/science.291.5503.403d
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NetWatch

Want to see the phases of this month's moon, or find out when to catch the sunrise on your vacation to Tahiti? Then check out the GeoAstro Applet Collection, a set of sun-moon Java calculators created by a German high school teacher and hobby programmer. The applets can show you day and night on a world map, tell you what a tree's shadow should be like at any time, compute the phases of the moon, predict equinoxes and solstices, and more. Lots of links lead to related info on other sites.

www.jgiesen.de/GeoAstro/GeoAstro.htm




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Science. ISSN 0036-8075 (print), 1095-9203 (online)