It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Originally posted by Kaytagg
I sure hope so.
I also wonder if we'll ever invent a "black hole machine," wherein we can create black holes on demand. If you could make such a machine "black hole" (used as a verb ) a relatively large amount of matter, it might be possible to extinguish stars. Imagine that as a weapon: "Mess with us, and we'll blow out the sun."
That would be the ultimate weapon.
Originally posted by Kaytagg
... It would, for all intents and purposes, cease to exist at any place in the universe. Explain this.
...spacetime singularity is a location where the quantities which are used to measure the gravitational field become infinite in a way that does not depend on the coordinate system. These quantities are the scalar invariant curvatures of spacetime, some of which are a measure of the density of matter.
Originally posted by Angel One
I have a different idea but I am a beginner scientist. I believe that a singularity is neither infinite in mass or density. I think that the singularity is actually there but one cannot see it.
Just because our primitive technology cannot measure very accurately the dimensions of a singularity doesn't mean the mass is gone. It means the space surrounding it, has collapsed around it.
Originally posted by Kaytagg
Simple question:
The singularity of a black hole is often described as being infinitely dense (density = mass/volume). This is not because the mass is infinite. The mass no where close to infinite, and it can be known pre and post formation of a black hole. That can only mean that the volume is 0 (which technically makes the density undefined).
So if the density is infinite, because the volume is 0, WHERE is the black hole, exactly? If it's taking up zero volume in space, you can't point to any location and say "It's here," because it's not. It's nowhere. Yet it's there.
Explain.
Originally posted by VitalOverdose
It takes an escape velocity of 25000 mph to escape the gravitational pull of the earth.
The event horizon is the point at which the escape velocity required to break free of the gravitational pull of the black hole exceedes the speed of light.
Originally posted by loner007
Easily done... hold up a sheet of paper and make a hole. Now ask your self does that hole have mass? Does it have a location on the sheet?
Just because the "Black Hole" seems to be an entity outside of our universe the way to a black hole can still be defined by its effects on it surroundings.