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www.phrenopolis.com
This page shows a scale model of the solar system, shrunken down to the point where the Sun, normally more than eight hundred thousand miles across, is the size you see it here. The planets are shown in corresponding scale. Unlike most models, which are compressed for viewing convenience, the planets here are also shown at their true-to-scale average distances from the Sun. That makes this page ra
Former Hydrogen Atom Scale Model [UPDATE: Well, now that I took the page down I've been hearing from teachers who found it useful even if it is a little inaccurate. So, when I get a little time I'm going to put something back here that will hopefully please everyone. Stay tuned.] So I used to have a page here that was a demonstration of how much empty space there is inside a hydrogen atom. It was
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