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Only Two Countries Can Still Claim Antarctica

Only Two Countries Can Still Claim Antarctica

7.9M views • 10 years ago

CGP Grey explains the history and legal status of territorial claims on Antarctica. It covers the overlapping national claims and the Antarctic Treaty that freezes them.

How to Surface a Submarine in the Arctic Ocean - Smarter Every Day 260

How to Surface a Submarine in the Arctic Ocean - Smarter Every Day 260

6.4M views • 5 years ago

SmarterEveryDay

Destin Sandlin of Smarter Every Day explains how a US Navy nuclear submarine surfaces through Arctic ice, filmed during the ICEx exercise. It shows ballast and control systems and the physics involved.