It's quite probable that all black holes spin. The probability of a huge amount of matter collecting with no net angular momentum is vanishingly small.
The first solution of general relativity's equations for a black hole was found by simplifying the problem to assume that there was no rotation. Thus, it is possible to find, in the literature, papers referring to non-rotating black holes. Later, a solution was found that allowed for rotation, and this is the most realistic physical situation.
No. There are not black holes anywhere near our solar system. Even then, scientific models suggest that stellar-mass black holes, the smallest common type, must be at least 3 times more massive than the sun, so the sun would more likely orbit the black hole if one were nearby.
1). Stick a pencil into the object. Make a note of the direction in which the end of the pencil is pointing. Go away for a while. Come back after some time has passed. Make note of the direction in which the pencil is pointing now. If the direction in which the pencil points has not changed, then the object most likely is not rotating. Go to section 2.If the direction of the pencil has changed, and the object has not been disturbed since your first observation, then the object is rotating.2). If the direction of the pencil has not changed, remove the pencil, and stick it into a slightly different place on the object. Repeat the test, using a slightly different interval of time between observations. If the pencil again does not change the direction in which it points, then the object is not rotating.(Second test-run eliminates the possibility that the pencil was originally stuck into a pole of rotation, and the possibility that interval between observations could have been exactly a whole number of periods after the first one.)
Black holes do not die but they can evaporate.
As the gravitational potential is converted into kinetic energy by the object falling down the energy gradient.
The most massive stars will die as black holes.
Black holes in science fiction movies are giant, black holes that rotate like a circular saws inwards.
because stars come from the blake hole
They can be classified according to whether they rotate or not; their electrical charge; but especially their mass.
No. There are not black holes anywhere near our solar system. Even then, scientific models suggest that stellar-mass black holes, the smallest common type, must be at least 3 times more massive than the sun, so the sun would more likely orbit the black hole if one were nearby.
stellar black holes were stars (these are large)primordial black holes were pieces of the big bang (these are microscopic)
poking holes in a soda can and watching it rotate
1). Stick a pencil into the object. Make a note of the direction in which the end of the pencil is pointing. Go away for a while. Come back after some time has passed. Make note of the direction in which the pencil is pointing now. If the direction in which the pencil points has not changed, then the object most likely is not rotating. Go to section 2.If the direction of the pencil has changed, and the object has not been disturbed since your first observation, then the object is rotating.2). If the direction of the pencil has not changed, remove the pencil, and stick it into a slightly different place on the object. Repeat the test, using a slightly different interval of time between observations. If the pencil again does not change the direction in which it points, then the object is not rotating.(Second test-run eliminates the possibility that the pencil was originally stuck into a pole of rotation, and the possibility that interval between observations could have been exactly a whole number of periods after the first one.)
No. It certainly has black holes, but it has other things as well.No. It certainly has black holes, but it has other things as well.No. It certainly has black holes, but it has other things as well.No. It certainly has black holes, but it has other things as well.
Black holes do not die but they can evaporate.
As the gravitational potential is converted into kinetic energy by the object falling down the energy gradient.
There are no black holes in our solar system
They are called "black holes".