Posted on Jul 30, 2017

Solar Eclipse 2017: NASA issues safety warning

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Take two pieces of cardboard. Poke a pinhole cleanly in the center of one. This makes a pinhole camera. Hold the pinhole camera so it projects down on the other sheet of cardboard (the screen). You can safely watch the eclipse this way

Solar Eclipse 2017: NASA issues safety warning

Posted from foxnews.com

Posted in these groups: The milky way galaxy

Space

Posted >1 y ago

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Solar Eclipse 2017: NASA issues safety warning

Solar Eclipse 2017: NASA issues safety warning

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