Why Isn't "Zero G" the Same as "Zero Gravity"?

82:20

In two mind-blowing hours, Hawking reveals the wonders of the cosmos to a new generation.

S1E3 • Stephen Hawking's Universe • 1997 • Physics

4:49

Light always travels at a speed of 299,792,458 meters per second. But if you're in motion too, you're going to perceive it as traveling even faster -- which isn't possible! In this second installment of a three-part series on space-time, CERN scientists Andrew Pontzen and Tom Whyntie use a space-time diagram to analyze the sometimes confounding motion of light.

TED-Ed • Physics

92:48

Ninety years after the historic double-slit experiment, the quantum revolution shows no sign of slowing. Join a vibrant conversation with renowned leaders in theoretical physics, quantum computation, and philosophical foundations, focused on how quantum physics continues to impact understanding on issues profound and practical, from the edge of black holes and the fibers of spacetime to teleportation and the future of computers.

World Science Festival • Physics

95:48

Explore our galaxy, the Milky Way

2010 • Physics

40:14

A historical account from 1985 of the long standing debate between Niels Bohr and Albert Einstein regarding the validity of the quantum mechanical description of atomic phenomena and observation of quantum states with respect to the uncertainty principle and quantum entanglement. Starring some famous physicists, John Archibald Wheeler, John Stewart Bell, Alain Aspect, David Bohm and others. Interesting material about the famous concept of "Spooky action at a distance" as quoted by Albert Einstein, an example of his displeasure at the nature of non-locality as a consequence of quantum entanglement which is nevertheless how particles in the universe work.

1985 • Physics

48:53

We hold a unique knowledge of time, realising that it stretches deep into the past, and will continue into the future. How does this affect our sense of who we are?

S1E3 • BBC: Time • 2006 • Physics