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latest user's comments
|#38 - Comment deleted||12/14/2014 on Me during finals week||0|
|#5 - So I see this is Gonna Get thumbed down into Oblivion.||12/06/2014 on Help buddy get off...||0|
|#48 - However not the same number of testicles..... [+] (1 new reply)||11/22/2014 on Still one of the best Yaks...||+3|
|#139 - Pedophilia is soo cute sometimes!||11/22/2014 on Can You Can Can||0|
|#51 - You shamelessly stole this from a Talented comedian (Tom Segur… [+] (2 new replies)||11/20/2014 on All of my What???||+33|
#67 - anonymous (11/20/2014) [-]
You're getting mad over something that was done somewhere else and then posted on FJ.
Congrats, you're raging over a repost.
|#27 - No, this is how time actually works that was one of the things… [+] (14 new replies)||11/20/2014 on a few more centuries...||+42|
#75 - anonymous (11/20/2014) [-]
Size doesn't affect speed of rotation.
#50 - derpyllama (11/20/2014) [-]
Assuming a non-rotating neutron star makes the math pretty easy. This is a bad assumption, but it doesn't really matter in this case because it won't change the result entirely.
You essentially have to be at the Schwarszchild radius (the radius coordinate of the event horizon for a given mass) which is not physical for a neutron star. The only way to get time dilation like this from general relativity is a black hole. So that whole scene is pretty bad.
I find that you would need to be at R ~ 1.00000000029 R_schwarzschild
#145 - anonymous (11/20/2014) [-]
The planet they are on is orbiting a black hole, very close and very quickly
#38 - wheteverlol (11/20/2014) [-]
From what I know interstellar had a few scientists to help with the physics behind the movie. Especially how black holes effect the universe, What was the part you think the movie did not get right? They even got a new graphical engine to depict what an actual black hole would look like. Vid related.
#47 - derpyllama (11/20/2014) [-]
Astrophysics grad student here.
They messed up quite a bit actually. The way they perceive time passing is correct, but the scale on which it occurs for the neutron star is completely wrong.
You would need to be essentially at the Schwarzschild radius of the mass of the neutron star to experience the kind of time dialation they claim in the movie in the movie, which is unphysical since it's not a black hole.
Also, the whole part with slowing the space craft down after the explosion is wrong. The material that was blown off the ship would have changed the center of mass, so the ship would no longer be rotating around the same axis, making docking smoothly like that impossible.
There is also the whole thing where he would have been spaghettified before he crossed the event horizon of the black hole due to tidal forces. This could have potentially be avoided as gravitational tidal forces are actually less severe around larger mass black holes such as the super massive black hole at the center of our galaxy, but for a black hole with mass on the order of 1 solar mass to 10 solar (Which I believe they claimed that it was. I think they called it a collapsed star once.) masses the forces mean he upside-down pepsi.
There are a bunch of other things that are kind of silly too. Having your first choice of planet to visit be a planet extremely close to a neutron star is one of those.
#159 - Whetstone (11/20/2014) [-]
Maybe I'm wrong, but I also feel like the environment of that first planet close to the black hole was off. If that planet were orbiting that close, the difference in gravity from the surface opposite to the black hole and the difference in gravity from the surface closest to the black hole would cause extreme tidal forces (similar in a way to Jupiter's moon Io) on the planet kneading the planet like dough creating large amounts of heat in its core. And with that, the planet should have been a more hot and volcanic planet.
#116 - lolpakka (11/20/2014) [-]
That whole part smelled like bullshit for me, especially with it's end scene. The smell of the screenwriters sweat while trying to figure out how to make some conflict at last has almost hit my nose.
Why did they visit that planet at all, if they knew about the huge dilatation?
How comes that noone has seen those huge tidal waves from orbit?
Why did they go down in person if that robot could have done the whole job alone, and if they had to go down for some strange reason, why did they start to go on a tour in the 130% gravity on foot, and waste time, if the robot could have rolled out, collect the debris and come back to ship in 20 seconds?
#92 - capslockrage (11/20/2014) [-]
I really don't think the exact accuracy of their ideas really matters that much, i think the only part that truly counts is that their general ideas are physically possible, in which case they were.
And for the spinning the space craft I think it more along the lines of extremely unlikely rather than impossible, and they didn't slow down the main craft, they just put their small one into a spin to match its speed.
#132 - durkadurka (11/20/2014) [-]
For the spinning he's saying that the craft will only spin about the docking port if the center of gravity is in line with it. If not the docking port will travel in a circle around the spacecraft's center of gravity when spinning
You could say that losing that part of the spacecraft happened to move the center of gravity in line with the docking port, but that'd mean the thing was initially designed with an off-center center of gravity.
It's also unlikely that the explosion would only spin the craft about one axis, but again not impossible.
|#35 - 7.8/10 too much water otheerwise perfect score. [+] (1 new reply)||11/19/2014 on Hit me||+23|
#86 - anonymous (11/19/2014) [-]
That was the most bullshit review ive ever seen in my life
|#131 - **** You.||11/16/2014 on I thought FJ might like this||0|
|#49 - Neutrality flavored sauce:||11/15/2014 on Adam Sandler||+1|
|#40 - Nah he's totally right dude, we should only have dogs who unde…||11/11/2014 on Think fast.||+1|
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