Science Scope, March 1st, 2006
Byline: Bob Riddle
Figure 1. An egg is balancing on the equinox at the equator- can it balance on any other day as well? See Resources for a link to the answer. Photo courtesy of the author.
During northern hemisphere fall, for the past two years, I have worked with students around the world on the Sun Shadow Investigation Project (SunShIP, sunship.currentsky.com). The goals of the online project are to collect mid-day pictures of shadows from various latitude locations, and to also allow students to share information with other participants about the altitude of the midday Sun on an equin...
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