The limit for a black hole does not exist, it can essentially be any size it wants.It can have any radius and mass.The size of a black hole is classified by the radius of the event horizon which is equal to the mass.They are usually classified as: Supermassive black holes, Intermediate-mass black holes,Stellar black holes, and Primoridal black holes. recently the largest black hole that astronomers have recorded, with a mass 18 billion times the mass of our sun.Keep in mind that our Sun's mass is 1.989 x 10 to the power of 30, which is 333,000 times the mass of the Earth. Interestingly it would take 1.3 million Earths to fill up the volume of the Sun.
Monday, May 2, 2016
Blog #4:Layers Of A Black Hole
A black hole has three layers, the outer and inner layer as one, an even horizon, and the singularity.
The event horizon of the mass is the boundary around the mouth of the black hole where light loses the ability to escape.This reason not even light can't escape a black hole is because within the event horizon, space is curved to the point where all directions are actually pointing inside, kind of like a funnel. Once a particle enters the event horizon it can't leave.
Sunday, May 1, 2016
Blog #3: What if You Fall Into A BlackHole?
Manny in spaghetti form |
If the black hole is big the pull of gravity will be even, but this doesn't mean you're not gonna die. You will most certainly die. If the black hole is big you won't be stretched like a piece of gum being pulled apart from both ends.Instead you'll get incinerated! Also the people who hopelessly screaming as you are being pulled away, will see you reach the end as you are being burned to a crisp.
Blog #2: What Is A Black Hole?
A black hole is a region of space time from which gravity prevents anything, including light, from escaping. The theory of general relativity predicts that a sufficiently compact mass will deform space time to form a black hole. Around a black hole, there is a mathematically defined surface called an event horizon that marks the point of no return. The hole is called black because it all light that hits the horizon can never escape.
The concept of a body mass being that massive that not even light can escape it was put forth by a geologist John Michell in a 1783 paper sent to the Royal Society. At that time work relating to Issac Newton's theory of gravity and the concept of escape velocity were well known.
Friday, January 29, 2016
Blog #1: How Black Holes Form
Black holes are formed when the center of a massive star collapses upon it itself, the collapse causes a supernova, a supernova is known as one of the biggest explosions in the space and can produce more energy than our sun in it's entire lifetime, and can completely outshine entire galaxies. Even after the explosion, if the core remaining after the explosion is massive no known repulsive force inside any star can push back strong enough to repel gravity from completely collapsing the core and turn it into a black hole.
Black Holes are just a great amount of matter squeezed into a very-very small, it's a such a great gravitational force that not even light can escape it.Black Holes don't "suck," instead objects just fall into them.In fact if a star gets too close to one the poor star would get torn apart.
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