TED EdLessons Worth Sharing

History vs. Augustus - Alex Gendler and Peta Greenfield

How exactly does binary code work? - José Américo N L F Freitas

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

Why don’t poisonous animals poison themselves? - Rebecca D. Tarvin

Are there universal expressions of emotion? - Sophie Zadeh

Can you solve the Mondrian squares riddle? - Gord Hamilton

What causes hallucinations? - Elizabeth Cox

The psychology of post-traumatic stress disorder - Joelle Maletis

How do your hormones work? - Emma Bryce

The science of hearing - Douglas L. Oliver