Arvin Ash

How we could Time Travel through a (special) black hole - Back to the PAST! (2021x21)

Udgivelsesdato: Jul 08, 2021

Get your SPECIAL OFFER for MagellanTV here: https://try.magellantv.com/arvinash - It's an exclusive offer for our viewers! Start your free trial today. MagellanTV is a new kind of streaming service run by filmmakers with 3,000+ documentaries! Check out our personal recommendation and MagellanTV’s exclusive playlists: https://www.magellantv.com/genres/science-and-tech Chapters 0:00 - You are a time traveler 2:32 - Spacetime & light cone review 6:15 - Flat Spacetime equations 7:03 - Schwarzschild radius, metric 8:42 - Light cone near a black hole 10:15 - How to escape black hole 10:39 - Kerr-Newman metric 11:34 - How to remove the event horizon 11:50 - What is a naked singularity 12:20 - How to travel back in time 13:26 - Problems Summary Time travel is nothing special. You’re time traveling right now into the future. Relativity theory shows higher gravity and higher speed can slow time down enough to allow you to potentially travel far into the future. But can you travel back in time to the past? In this video I first do a quick review of light cones, world lines, events, light like curves, time-like curves, and space-like curves in this video so that you can understand the rest of the video. A space like-world line means that the object has to travel faster than light. But moving anything to the speed of light requires an infinite amount of energy to accelerate. So this is not possible. Going faster than the speed of light can create scenarios that allow you to travel back in time. But since this is not physically possible, we need to figure out a clever manipulation of space time. This means we have to solve Einstein’s equations of General relativity. The simplest spacetime is a flat spacetime. The equation for this can be expressed in Cartesian or spherical coordinates. But to travel back in time we need more complex spacetime. The first solution ever presented to Einstein’s field equations was done by Karl Schwarzschild. He formula