THIS DAY IN SCIENCE: Penicillin Is Discovered - Sir Alexander Fleming in 1928

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Is it possible to create a perfect vacuum? – TED Ed -Rolf Landua and Anais Rassat

The universe is bustling with matter and energy. Even in the vast, apparent emptiness of intergalactic space, there’s one hydrogen atom per cubic meter. But is there such thing as a total absence of everything? Is it possible to make a completely empty space?

Rolf Landua and Anais Rassat explain the science behind vacuums. Lesson by Rolf Landua and Anais Rassat, animation by Karrot Animation.

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View full lesson: https://ed.ted.com/lessons/is-it-poss…

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