What is the coldest thing in the world? – Lina Marieth Hoyos

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The coldest materials in the world aren’t in Antarctica or at the top of Mount Everest. They’re in physics labs: clouds of gases held just fractions of a degree above absolute zero. Lina Marieth Hoyos explains how temperatures this low give scientists a window into the inner workings of matter, and allow engineers to build incredibly sensitive instruments that tell us more about the universe.

Lesson by Lina Marieth Hoyos, animation by Adriatic Animation.

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