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Uploaded by activity2008 on Dec 8, 2007
Invented (in 1880s) by William Crookes during his investigations into the nature of cathode rays(electrons).
Science & Technology
Standard YouTube License
Buy railway / paddlewheel tubes like this one at Sci-Supply. Awesome!
scienceZZZ 3 years ago
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Buy railway / paddlewheel tubes like this one at Sci-Supply. Awesome!
scienceZZZ 3 years ago