entire frame of reference can get dragged along with the black hole's spin inside the ergo sphere your frame is dragged so much that it's physically impossible for you to sit still no matter how much thrust you have stationary paths just aren't possible hmm this might make more sense for the space-time diagram if we include time in our picture a stationary path looks like this near a non rotating black hole you can maintain that with a good amount of thrust but if the black hole is rotating it doesn't matter how much thrust you have or even what direction you point that thrust inside the Ergo sphere you're going to rotate with the black hole no matter what being in there does give you an opportunity though you're still outside the event horizon so you can escape with enough thrust if you go in on just the right path and break off part of your ship just the right way you could escape with more energy than you had when you entered just does that create energy no no no don't be ridiculous the only possibility is that you took energy from the black hole the black hole would slow down a little bit losing rotational energy we already know that nothing can escape the event horizon so that energy must be in the space-time outside it and I mean all of it we can keep doing this until we've taken all the black hole's rotational energy in the end it'll be a non-rotating blackhole so how do rotating black holes work rotating black holes have an event horizon just like non rotating ones it's just that the rotating event horizon is smaller and flatter but what really makes rotating black holes special is the ergosphere it's a weird place where your entire frame of reference is dragged along with the rotation of the black hole and since that rotational energy is outside the event horizon we can steal it from the black hole after all the stars in the universe stop burning and all the white dwarves cool into black dwarves rotating black holes will probably be the only source of energy left in the universe so do you think humans will live long enough to become a black hole civilization please share your thoughts in the comments thanks for liking and sharing this video and a special thanks goes out to patreon patrons like LT Marshall folds who help make this show possible don't forget to subscribe if you'd like to keep up with us and until next time remember it's okay to be a little crazy the featured comment comes from a rock shop who asked if energy comes from the field why does the battery matter because the electric current is the reason the energy transfer is happening and you don't get a current without the electric field from the battery there's no free lunch all debts must be repaid anyway thanks for watching
START_INTERACTION_TOKEN do you think humans will live long enough to become a black hole civilization please share your thoughts in the comments thanks for liking and sharing this video and END_INTERACTION_TOKEN BETWEEN_SEGMENTS_TOKEN START_SELFPROMO_TOKEN a special thanks goes out to patreon patrons like LT Marshall folds who help make this show possible don't END_SELFPROMO_TOKEN BETWEEN_SEGMENTS_TOKEN START_INTERACTION_TOKEN forget to subscribe if you'd like to keep up with us and END_INTERACTION_TOKEN