Today we are talking about the Apocalypse. Are we currently in an Apocalypse? What is our threat of nuclear war? When these things potentially happen, what can you do to survive? What skills do you need to have?

What did we learn this week? 4:52

The moon rotates around the earth every 28 days 5:00

Thinking hard can actually drain you 10:34

Studytime: 16:30

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