20:39
Gravitational waves, black holes: LIGO, a new window on the Universe | David Shoemaker | TEDxMcGill
18:20
Can we make quantum technology work? | Leo Kouwenhoven | TEDxAmsterdam
24:02
Is Time Travel, Especially Into the Past Possible? | Matt Szydagis | TEDxSchenectady
22:17
Orbits, Gravity, & Modified Dynamics | Stacy McGaugh | TEDxCLESalon
16:06