Black Holes can SPIN?!?

Most sources talk about Schwarzschild black holes, but those don't spin. Most are what we call Kerr black holes, or rotating black holes, surrounded by a region called an ergosphere. The spacetime around them is not only stretched, but also twisted, leading to some strange phenomena. ________________________________ VIDEO ANNOTATIONS/CARDS Black Hole Playlist: https://www.youtube.com/playlist?list=PLOVL_fPox2K-zpTeryROTkmzzsMssSMWp What is Electric Charge? https://youtu.be/gvX29HPmBEI The Ultimate Guide to Relativity: https://youtu.be/FdWMM6aXpYE ________________________________ RELATED YOUTUBE VIDEOS Veritasium on Spinning Black Holes: https://youtu.be/fu3645D4ZlI Kurzgesagt on Spinning Black Holes: https://youtu.be/ulCdoCfw-bY Fraser Cain on Spinning Black Holes: https://youtu.be/SMrwHnow3hk ________________________________ SUPPORT THE SCIENCE ASYLUM Patreon: http://www.patreon.com/ScienceAsylum Advanced Theoretical Physics (eBook): https://gumroad.com/l/ubSc Merchandise: https://www.scienceasylum.com ________________________________ HUGE THANK YOU TO THESE PATRONS Einsteinium Crazies: LT Marshall Faulds, Kenny Holmes, Ilya Yashin, Rick Finn Plutonium Crazies: Anamnesia, JKLMN Anderson, Timothy Blahout, Drake Dragon, Kevin MacLean Platinum Crazies: Vittorio Monaco, Al Davis, Stephen Blinn, Mikayla Eckel Cifrese, Evgeny Ivanov ________________________________ OTHER SOURCES http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NAME+Sgr+A* https://arxiv.org/abs/1410.2130 http://notizblock.yukterez.net/viewtopic.php?p=225/ http://www.madore.org/~david/math/kerr.html https://www.nature.com/news/spin-rate-of-black-holes-pinned-down-1.13512 https://www.nasa.gov/mission_pages/nustar/multimedia/pia16696.html http://www.astro.ucla.edu/~ghezgroup/gc/journey/smbh.html ________________________________ LINKS TO COMMENTS https://www.youtube.com/watch?v=C7tQJ42nGno&lc=UgzASerpKIUtyprIaKd4AaABAg ________________________________ IMAGE CREDITS Supermassive Black Hole: https://www.eso.org/public/videos/eso1835c/ Black Hole Eating: https://svs.gsfc.nasa.gov/12005 #blackholes #astronomy #generalrelativity