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 Date: 2015-03-23 09:39:10Physics Light sources Optical materials Pinhole camera Astrophysics Sun Window Eye Vortices Plasma physics Space plasmas |
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| First Page | Document Content | |
|---|---|---|
Date: 2015-03-23 09:39:10Physics Light sources Optical materials Pinhole camera Astrophysics Sun Window Eye Vortices Plasma physics Space plasmas |
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Build a Safe Sun Viewer Build a safe Sun viewer using cheap household items and learn why it is dangerous to look directly at the Sun, even briefly. Sarah Roberts, UNAWE Age