Lunar Phases and Eclipses

Author:Steven Blumsack

By moving the "moon" around the earth (upper right), changes in the phases of the moon can be seen. By moving the "Shadow" of the earth towards the moon, various stages in a lunar eclipse can be seen.

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bewijs stelling van Pythagoras
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רישום חופשי
Slope Between 2 Points (Phase 2)

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Olimpiada Constanța.
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กราฟของสมการเชิงเส้นสองตัวแปร
Perspective Projection: Parallel lines to Parallel lines

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