The Key to the Cosmos • episode "S1E2" • Atom

5:22

How do we know what matter is made of? The quest for the atom has been a long one, beginning 2,400 years ago with the work of a Greek philosopher and later continued by a Quaker and a few Nobel Prize-winning scientists. Theresa Doud details the history of atomic theory.?

TED-Ed • Physics

54:53

See how uranium has shaped the past and will change the future.

S1E2 • Uranium – Twisting the Dragon’s Tail • 2015 • Physics

58:15

There is a strange and mysterious world that surrounds us, a world largely hidden from our senses. The quest to explain the true nature of reality is one of the great scientific detective stories.

Horizon • 2011 • Physics

11:18

Scientists investigate the way the Sun builds its power -- through fusion -- hoping to find a way to use fusion as a less dangerous and less radioactive waste-producing path to energy than fission. But there are some major difficulties along the way...

2017 • Physics

39:36

Zach charts a journey to determine whether time travel is possible. He meets a man who claims to have traveled back in time due to a secret government program and a group of people living in Liverpool known as “time slippers.” Zach then makes an visit to the CERN headquarters in Geneva, where he attempts to understand the origins of the universe and the dimension of time. Equipped with this new knowledge, Zach tests his own perception of time with an elaborate skydiving experiment to see if he can slow down time itself.

2018 • Physics

5:22

The classical physics that we encounter in our everyday, macroscopic world is very different from the quantum physics that governs systems on a much smaller scale (like atoms).

TED-Ed • Physics