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video thumbnail 0:47
The Professor gives away his periodic table tie

2010-09-13

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uploader channel thumbnailPeriodic Videos
video thumbnail 1:42
Proffies - The Professor's Selfies

2014-11-28

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uploader channel thumbnailPeriodic Videos
video thumbnail 1:31
Special Spectroscope - Periodic Table of Videos

2015-01-28

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uploader channel thumbnailPeriodic Videos