General relativity passes a range of precise tests set by pair of extreme stars • Hacker News Board

Re: General relativity passes a range of precise tests set by pair of extreme stars

#31

Post by throwaway81523 » Thu, Dec 16, 2021, 9:02 PM UTC

regitempus wrote: post #22

throwaway81523 wrote: post #4

As Lenny Suskind put it, "they didn't call him Einstein for nothing!".

This is a good one haha, thanks for sharing — would love a primary source if you know it off the top of your head!

It was apparently a line from one of his general relativity lectures.

Re: General relativity passes a range of precise tests set by pair of extreme stars

#32

Post by naasking » Fri, Dec 17, 2021, 3:50 PM UTC

raffraffraff wrote: post #21

behnamoh wrote: post #10

Earlier quoted context omitted.

My jaw (and my phone) dropped when I read the numbers. I feel like space is ruthlessly huge and these pulsars are brutally massive..

https://en.m.wikipedia.org/wiki/TON_618 This black hole is 66 billion solar masses. Its mass is greater than that of our entire galaxy. The quasar shines with the power of 140 trillion suns. The event horizon radius is times 40 times the distance from Neptune to the Sun. Matter is getting sucked into it at 7000km/s

It's interesting how we talk about these far off things using the present tense, because technically we should replace every use of "is" in your post with "was".

Re: General relativity passes a range of precise tests set by pair of extreme stars

#33

Post by krapp » Fri, Dec 17, 2021, 3:54 PM UTC

m3kw9 wrote: post #24

raffraffraff wrote: post #21

Earlier quoted context omitted.

https://en.m.wikipedia.org/wiki/TON_618 This black hole is 66 billion solar masses. Its mass is greater than that of our entire galaxy. The quasar shines with the power of 140 trillion suns. The event horizon radius is times 40 times the distance from Neptune to the Sun. Matter is getting sucked into it at 7000km/s

This is why we need to develop very precise warp drive exit techniques. Don’t want to exit warp inside the horizon.

Traveling through hyperspace ain't like dusting crops, kid.

Re: General relativity passes a range of precise tests set by pair of extreme stars

#34

Post by raffraffraff » Fri, Dec 17, 2021, 4:26 PM UTC

naasking wrote: post #32

raffraffraff wrote: post #21

Earlier quoted context omitted.

https://en.m.wikipedia.org/wiki/TON_618 This black hole is 66 billion solar masses. Its mass is greater than that of our entire galaxy. The quasar shines with the power of 140 trillion suns. The event horizon radius is times 40 times the distance from Neptune to the Sun. Matter is getting sucked into it at 7000km/s

It's interesting how we talk about these far off things using the present tense, because technically we should replace every use of "is" in your post with "was".

True. In the case of that monster, unless it ran out of galaxies to eat, it's still there nomming. Perhaps the only thing that has changed is the size of it.