Gem theft at the Cleveland Museum odf Natural History

2015-12-12 Thread Robert Terwilliger
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Neat video showing how sunrise moves

2015-12-12 Thread koolish
A student video showing how sunrise moves along the horizon. https://www.youtube.com/watch?v=UzOkTjxhR3Q --- https://lists.uni-koeln.de/mailman/listinfo/sundial