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10 Things We Didn’t Know 100 Years Ago

In just the last century, we’ve made an astounding amount of scientific progress. And thanks to some of that progress, we can now share 10 of those discoveries with you in a video on the internet!

Hosted by: Michael Aranda
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Sources:
General

Discovery of the neutron

DNA as a double helix

Vitamins

Antibiotics

Milky Way

Hydrogen

Plate Tectonics

Out of Africa Theory

Ozone

Einstein