TED-ED

What would happen if the Amazon Rainforest disappeared? - Anna Rothschild
Have we reached the limit of computer power? - Sajan Saini and George Zaidan
What actually causes high cholesterol? - Hei Man Chan
The history of the world according to rats - Max G. Levy
One of the most controversial medical procedures in history - Jenell Johnson
The dark history of arsenic - Neil Bradbury
A day in the life of a martial artist in medieval China - Peter Lorge
Do you really need to take 10,000 steps a day? - Shannon Odell
How some friendships last — and others don’t - Iseult Gillespie
Why animals help each other - Ashley Ward
Lady Meng Jiang: The legend of the woman who outwitted an evil emperor - Juwen Zhang
How to make your stress work for you - Shannon Odell