BLACK HOLES
A black hole is a region of spacetime from which gravity prevents anything, including light, from escaping.The theory of general relativity predicts that a sufficiently compact mass will deform spacetime 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 absorbs all the light that hits the horizon, reflecting nothing, just like a perfect black body in thermodynamics.Quantum field theory in curved spacetime predicts that event horizons emit radiation like a black body with a finite temperature. This temperature is inversely proportional to the mass of the black hole, making it difficult to observe this radiation for black holes of stellar mass or greater.Objects whose gravity fields are too strong for light to escape were first considered in the 18th century by John Michell and Pierre-Simon Laplace. The first modern solution of general relativity that would characterize a black hole was found by Karl Schwarzschild in 1916, although its interpretation as a region of space from which nothing can escape was first published by David Finkelstein in 1958. Long considered a mathematical curiosity, it was during the 1960s that theoretical work showed black holes were a generic prediction of general relativity. The discovery of neutron stars sparked interest in gravitationally collapsed compact objects as a possible astrophysical reality.
- Black holes are real Big and giant
- Can suck entire whole galaxies
- Scientist have enough evidences.
- Black holes are the end points of every thing. (Star, Matter, energy, gravity)
- Black holes helps in building galaxies
- Black Holes can eat an entire start over the years and the star will disappear.
- Some scientists believes that the black holes are the path to parallel universe.
- In this golden edge of the research and scientist the black holes can be the keys to under stand the birth of the universe, the formation of galaxies.
- Power in black holes come from the primary object of the universe called "Gravity".
- Gravity pulled everything towards it self. But in black hole the gravity is enormous and it can pull everything surrounding. It can even bend lights.
- Black holes is event where everything checked in and nothing checks out,
- Anything get closed to black holes get doomed. It may be planet, stars or even a solar system.
- If a black holes come closer to our solar system, it will rip us apart. It can pull stronger than the sun does and suck all the matters from the solar system.
- The black hole is extremely dense. If we squeeze entire earth to a size of a 2 inch ball and still the weight remain the same, that's the density of a black holes. In the process of pulling in to a small piece the atom it self rip apart.
- We cannot create black holes in the lab. So only gravity can create it self out in the space.
- Formation of black holes can happen in giant massive stars which are 10 times larger than sun.
- When a star dies it creates super nova. If a massive stars size more than 100 times of sun dies it create hipernova which is the birth of a black hole.
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