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t22422750

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3 videos

Human History: Just a Moment in the Universe's Timeline

Human History: Just a Moment in the Universe's Timeline

3,127 views
NASA's Space Pen vs. USSR's Pencil: The Ultimate Space Race Showdown

NASA's Space Pen vs. USSR's Pencil: The Ultimate Space Race Showdown

935 views
Galileo's Leaning Tower of Pisa Experiment

Galileo's Leaning Tower of Pisa Experiment

830 views