Is time dilation a constant no matter how close you are to lightspeed?
In other words, is it true that no matter how fast you’re going in comparison to the speed of light, (i.e.: 100 MPH) the time dilation is still in constant effect (no matter how minute those effects might be)?
Yes, it is always there. As long as there’s something against which to measure your velocity, i.e. an observer, your clocks will run at different speeds.
When you walk behind someone sitting at their desk, you’re experiencing time dilation as compared to him on an imperceptable scale.
Unless we start talking about quantum physics…I have no idea if something would be able to move slow enough so that the effects of time dilation would be less than some smallest possible increment of time.
But as far as most normal macroscopic things, yes, you can always measure time dilation relative to something else, and the equations for time dilation will always give you an answer however small.
Another thing that seems similar to me;
why is it that quantum peculiarities occur so specifically at the center of black holes?
What kind of quantum peculiarities?
All sorts of strange stuff happens in black holes because of how warped spacetime becomes.
But why does the incredible bending of spacetime make peculiarities?
Everything is being constantly bent by forces such as gravity.
In a similar way to how time dilation is in constant effect, and is mostly seen only when approaching light speeds (because that’s when it gets noticeable), wouldn’t those peculiarities be constantly happening instead of requiring that extreme bending to happen?
Or is there something about the incredible large amounts of density that makes this stuff happen?
I don’t know who said it, but:
At the singularity spacetime becomes infinitly curved or some strangeness close to that. Is there some specific phenomenon you’re talking about?
Well, I was thinking about the supposed information paradox and all of the other stuff that’s supposed to go on in or around black holes that are said to be unseen elsewhere in the universe, and I didn’t know why that stuff only happens inside of black holes. It just seems like the incredible gravitational force isn’t enough to indicate that all this sort of stuff happens.
Plus, why are black holes commonly said to be infinitely dense or bending or so many other such things if they contain a finite amount of mass?
As far as the information paradox goes, Stephen Hawking seems to think he’s resolved it. Also according to Stephen Hawking, black holes radiate energy so they’ll eventually disappear. I wonder if that puts the information back into the universe?
Black holes contain a finite amount of mass in an infinitely small volume. Or so they say.
The faster something moves the more time dilates. Its not constant how could it be? If something is not moving at all there will be no time dilation effects. If its moving at the speed of light time will not pass at all. think we’ve done this topic to death.
Black holes…well there alot of fun. First thing to point out is that gravity is the curving of time and space due to engy/matter. What happens at the singularity no one really knows. I’m doing some work in the field at the moment. Might update you on some of my findings at some point.
why are black holes commonly said to be infinitely dense or bending or so many other such things if they contain a finite amount of mass?
density is mass per unit voume mass/volume hence if volume is zero the density will be infinte (m/0) regardless of the mass. bare in mind that we don’t really know whats going on though so this sigularity/infinte density might not be present.
He didn’t mean a constant value, just that it’s always happening.
Like Anthem said.
I know that that’s density, but how could they have zero volume if they exist? Or how could they exist and have zero volume?
It doesn’t seem like they have ‘infinite’ anything, it’s just that that’s a word that scientists use to describe it to people that like to hear that something is ‘infinite.’
I know that that’s density, but how could they have zero volume if they exist? Or how could they exist and have zero volume?
It doesn’t seem like they have ‘infinite’ anything, it’s just that that’s a word that scientists use to describe it to people that like to hear that something is ‘infinite.’
A point has no volume the singularity is a point hence it has no volume. Another way to look at it is to say there is no known force to stop the point collapsing to a single point hence there is no known way that the black hole could have a volume. gravity is attractive and theres nothing repulsive to stop the matter collapsing. Scientists do think that somethings are infinte and they do mean infinte. I think in the case of blackhole the infinity is there simply because we have to theory to say that it isn’t.
Ooooookay, so that makes sense now. Nobody ever explained to me that the singularity was just a point.
Doesn’t pressure act against gravity?
Yeah pressure acts against it but at somepoint the gravity is going to become so strong that it over powers any pressures. The more massive the star the stronger the gravity. This is why big stars will become black holes and “medium” stars will form neutron stars because they are big enough to over come the pressure of the electrons but not of the neutrons.
But the thing is we don’t know what the lawss of physics are on really small length scales there could be some unknown physics that stops the star collapsing to a singularity.