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0:02:09
An Important Announcement
0:11:53
Can All Animals Swim?
0:05:12
How Fast are Turtles Really?
0:13:10
Everything that You Can Possibly Know About Diamonds
0:04:35
Carbon: A Brief History, Properties, and Allotropes
0:03:45
Abridged Introduction
0:02:09
0:11:53
0:05:12
0:13:10
0:04:35
0:03:45