Escape The Kugelblitz Challenge | Space Time | PBS Digital Studios

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1. Because even some light waves are doomed to be swallowed inside the event horizon before the singularity is even formed, this means that light waves from the pulse themselves are doomed to be swallowed by the singularity.... calcuting the distance of the event horizon and creating a mirror/absorber is the answers!
2. I`ve been thinking after watching this video about how to scape a black hole. Light on the event horizon for sure stay trapped there if the black hole stays with constant gravity over time but what in this world is constant? Everything flows towards more or less and we know black holes looses mass with hawking radiation. So if a foton is trapped on momment 0 in the event horizon and nothing more enters the black hole, in the momment the black hole looses some mass from hawking radiation the light that was trapped will find a lower gravity enough to get free and travel away. As long as a particle dont touch the singularity one day that particle will find a chance to leave the black hole intact.
3. Could we not just be really, really apologetic about Chapter 1
4. could you guys tell me a place where i can draw penrose diagrams?
5. Plan A
   As I understand it with plan B the event horizon would already be formed befor the light can be reflected as there will be enought energy/mass in the area to form the black hole, the space would be streched making it impossible for the then reflected light to escape the area, maintaining the pseudo-singularity.
   On the other hand it could be that after the light is reflected the pseudo-singularity would get less dense and therefore weaker possibly disolving the event horizon and over time and restoring everything back to normal, however it is unclear how much time would pass before that would happen and earth might arrive near the ending of the universe,
   so i would still choose Plan A.
6. how about this idea of building a quantum sphere of entangled particles colliding what will be their behaviour
7. Option A is the correct answer here. But what's more interesting is what'd happen if an Earth chose option B. Here's what I think...
   
   If, say, an Earth chose option B... then once the sphere of light has passed the moon - an event horizon would have formed just outside the moon. The Earth would notice nothing wrong at that moment because both light and gravity would still take 1s to travel to the Earth.
   
   The problem starts to become apparent after the light is bounced back... Earth still feels nothing. But both the gravity of the light and the light itself has already arrived at the shield. I think the physicist of the show intentionally mentioned the Shell Theorem to distract us there :). You'd think you're ok as long as you've bounced the light... but how about the gravity - or spacetime curvature - coming along with the shell? It's ok inside the shell but you (or the light) can't go outside the shell.
   
   Once the light is bounced it'll find it's already inside a black hole. So it can no longer go outward. Then, both the light and the shield would collapse inward because that's how a black hole works. 0.5s later, Earth would finally see the collapsing shield, the light, and feel the gravity. The Moon will also come crashing down for some bonus damage. Game over.
8. wow amazing 🙋 question!!!
   i don't havea clue but operation disco ball seems.more reasonable, i cannot think of another scenario of a death star like structure, I had enought from lukas films already
9. can I get a standalone graphic of that neon penrose diagram? i think it looks cool
10. Ok so a quick question! If nothing can escape a black hole, does it also cut off quantum entanglement? If the gravity is super dense and light cant even escape, quantum entanglement shouldnt pertain to the same theory since you could switch places instantly. So if you fell into a black hole and switched places could you still get out? Sorry i watch your channel and wish i knew more about physics in general! Ty for the great work this helps me a lot!
11. What does the evaporation of a black hole look like on a Penrose diagram?
12. If we build a Dyson sphere it's plausible to assume they've noticed. You could simply deflect a small amount of energy away from the Earth's Dyson, (assuming the aliens haven't planned for this also) absorb the energy and "use it to power a superweapon"
13. Plan B seems like it would leave you in a pocket reality that would simply never reconnect with the outside, but otherwise remain flat as the light shell travelled away across an infinite internal space as another horizon. Heat death ensues.
    
    Unfortunately, I don't have time to diagram this, and I'd probably need to in order to properly determine the effects of plan A. (That and find out if it's outside the radius, because elsewise it's just singularity-city for everyone.)
14. Quick question: Do you still accept e-mails that are sent on the 23rd or 24th of December?
15. definitely if they saw the first star wars prequel.
16. anything that absorbs it has to be bigger than the size it would need to become a black hole, therefore reflection has to be the answer
17. Couldn't we just make a giant ball of ice to defuse the Kugelblitz harmlessly in all directions?
18. This might be the easiest challenge thus far. The anwser is obviousely the Dyson sphere, why you might ask? Well here's my anwser:
    Dear president, why don't you look at it this way: the dyson sphere is like a big wall protecting earth from the space mexicans, i mean aliens ;)
19. The dude has a dwarfesque (fantasy) nose
20. I love that you made a follow-up joke to the Star Wars one in your next video