4th Dimension made easy

:

The 4th Dimension explained by Carl Sagan.


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78

Space Time Documentary

A great Documentary explaining Time and our understanding of it.

Abram Regel
Abram Regel
Posted 1 years ago
75

Which prison hat are you wearing?

Thought this was a really good logic puzzle.

Max King
Max King
Posted 1 years ago
77

How cats always land on their feet!

Learn the physics of how cats always land on their feet!

Ken Patel
Ken Patel
Posted 1 years ago
101

The 3 Doors

You need to escape and only have three doors to choose. Behind Door #1 is deadly poisonous gas. Doo...

Ric Axlerod
Ric Axlerod
Posted 1 years ago