What would happen if...

LordShaithis · Post by **LordShaithis** » 2002-11-20 07:17pm

You have two black holes of equal mass, one is matter and the other antimatter. You somehow propel the two of them toward one another on a collission course. What happens when they hit?

Dralan · Post by **Dralan** » 2002-11-20 07:22pm

To do so would be impossible unless you are a GOD, but for the sake of our overactive imagination there is a going theory that the two would do one out of two things

1. Equalize each other and become nothing

or

2. Make one hell of a big bang.

Mike_6002 · Post by **Mike_6002** » 2002-11-20 07:24pm

Dralan wrote: 2. Make one hell of a big bang.

That going to be one helluva explosion

Patrick Degan · Post by **Patrick Degan** » 2002-11-20 07:29pm

GrandAdmiralPrawn wrote:You have two black holes of equal mass, one is matter and the other antimatter. You somehow propel the two of them toward one another on a collission course. What happens when they hit?

Since the conditions inherent within a singularity render meaningless the material or energy state of any type of matter which comprised the original star, you really could not have either a "matter" or "antimatter" black hole. The two hypermasses would simply merge into one large hypermass, such as what is happening with the two bodies whose collision we are observing "presently".

Durandal · Post by **Durandal** » 2002-11-20 07:50pm

Nothing. Black holes cannot move. As you go further past the event horizon, your perception of depth turns into time because space doesn't exist in a spatial singularity. That's why it's called a singularity.

Furthermore, black holes effectively strip matter of all quantum numbers except momentum and energy, so there is no such thing as matter and antimatter in a black hole.

THEHOOLIGANJEDI · Post by **THEHOOLIGANJEDI** » 2002-11-20 07:53pm

Well wouldn't two normal Black Holes or other extremely small and dense stars (such as Neutron Stars) cause a Gamma Ray Burst or better known as a Hypernova?

Grand Admiral Thrawn · Post by **Grand Admiral Thrawn** » 2002-11-20 08:08pm

Black Holes cannot be matter or anti-matter. They just go squish and make a black hole massing as much as the two.

The Dark · Post by **The Dark** » 2002-11-20 08:10pm

Would their direction of rotation make any difference as to how they interact with each other?

THEHOOLIGANJEDI · Post by **THEHOOLIGANJEDI** » 2002-11-20 08:10pm

Grand Admiral Thrawn wrote:Black Holes cannot be matter or anti-matter. They just go squish and make a black hole massing as much as the two.

Don't they also create a Gamma Ray burst (Hypernova).

Durandal · Post by **Durandal** » 2002-11-20 08:25pm

Oops, I was wrong. Black holes can move.

http://www.aoc.nrao.edu/pr/highvblackhole/

Pretty much the collision would produce huge gravitational waves. Check this link out.

http://straitstimes.asia1.com.sg/techsc ... 14,00.html

LordShaithis · Post by **LordShaithis** » 2002-11-20 10:32pm

No matter/antimatter in a black hole? Interesting.

But when they hit one another, will their even horizons crack? *runs for cover*

The Dark · Post by **The Dark** » 2002-11-20 10:37pm

Durandal wrote:Oops, I was wrong. Black holes can move.

I was pretty sure they could, since a team from the University of Tubingen discovered that the black hole MCG-6-30-15 is rotating (roughly one revolution every 105 minutes, if I'm reading the article in the July 2002 Discover magazine correctly). If it can have rotational velocity, then it would seem that it should be able to have linear velocity. I'm wondering if their rate of rotation would speed up or slow down.

Spanky The Dolphin · Post by **Spanky The Dolphin** » 2002-11-20 10:39pm

Are black holes even made of anything? or are they just gravitational pits?

Shinova · Post by **Shinova** » 2002-11-20 10:43pm

Spanky The Dolphin wrote:Are black holes even made of anything? or are they just gravitational pits?

They're supposed to be stars I think. Collapsed ones.

The Dark · Post by **The Dark** » 2002-11-20 10:51pm

Shinova wrote:
Spanky The Dolphin wrote:Are black holes even made of anything? or are they just gravitational pits?

They're supposed to be stars I think. Collapsed ones.

They were large order stars (much larger than Sol) that collapsed in on themselves, becoming so dense that they warp space-time, creating a singularity where space-time is condensed to a point. I think they are still made up of solid matter, in varying forms, but are so dense that the mass of a few million suns is contained in a single point.

Durandal · Post by **Durandal** » 2002-11-20 11:08pm

The Dark wrote:
Durandal wrote:Oops, I was wrong. Black holes can move.
I was pretty sure they could, since a team from the University of Tubingen discovered that the black hole MCG-6-30-15 is rotating (roughly one revolution every 105 minutes, if I'm reading the article in the July 2002 Discover magazine correctly). If it can have rotational velocity, then it would seem that it should be able to have linear velocity. I'm wondering if their rate of rotation would speed up or slow down.

Sure they can slow down and speed up. If a black hole absorbs a piece of matter, its rate of rotation must decrease proportionally to conserve angular momentum. However, black holes' rotation rates will inevitably keep speeding up, as they slowly decay.

kojikun · Post by **kojikun** » 2002-11-20 11:09pm

theoretically if the blackholes could be matter and antimatter and you got them to collide, the blackholes would probably destroy one another. once their physical matter was converted to energy, the gravitational pull would vanish (collapsing at c) and the high energy radiation would escape.

Durandal · Post by **Durandal** » 2002-11-20 11:15pm

Oh, and about what a black hole actually is...

Basically, it's a singularity that exists in no space and all time. All the mass of a star has been compressed into a single point, giving black holes finite mass but infinite density. Packing that much mass into such an infinitely small volume means that you'll have massive gravitational distortions, but only up to a certain radius away from the center, which is known as the event horizon. Beyond this radius, the black hole is effectively the same as a star of equivalent mass. If our sun suddenly became a black hole, we'd continue to orbit it, provided we were outside the event horizon.

Durandal · Post by **Durandal** » 2002-11-20 11:19pm

kojikun wrote:theoretically if the blackholes could be matter and antimatter and you got them to collide, the blackholes would probably destroy one another. once their physical matter was converted to energy, the gravitational pull would vanish (collapsing at c) and the high energy radiation would escape.

Actually, that would happen even if they were both matter. Once the black holes got within each other's respective event horizons, the singularities would have such a massive attraction to one another that the resulting kinetic energy would be purely monstrous, and you'd have an intense gamma ray burst, along with the cosmic equivalent of an earth quake due to the outburst of hugely-powerful gravitational waves.

Alnilam · Post by **Alnilam** » 2003-02-04 06:53am

You simply gets a larguer black hole.No matter if one black hole is made of,matter,antimatter,stars,or idiots such as Dark Star or RSA

.All properties of matter that falls into a black hole are lost except mass,angular momentum,and electrical charge.A larguer black hole and a tremendous burst of gravitatory radiation.TREMENDOUS in some cases.Visit:

http://spacelink.nasa.gov/NASA.News/NAS ... lack.Holes

StarDestroyer.Net BBS

What would happen if...

What would happen if...

A moot question