13:45

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20:36

RHENIUM (new) - Periodic Table of Videos

13:43

Making Liquid Nitrogen From Scratch!

14:05

Why is All Life Carbon Based, Not Silicon? Three Startling Reasons!

13:10

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SCANDIUM (new) - Periodic Table of Videos

1:25:34

Investigating the Periodic Table with Experiments - with Peter Wothers

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HUGE Magnet VS Copper Sphere - Defying Gravity- Will a Neodymium Magnet Float Inside?