Presentation regarding some unknown facts about Black hole. This project was given to me during my Engineering period. Thanks for being here 🙂

1. BLACK HOLE FACTS
- BY KAUSHAL KUMAR JHA

2. CONTENT :
 Theoretical Definition
 General Relativity
 Model of Black Hole
 Types
 How are they Formed ?
 Properties
 Types
 First Real Image
 Interesting Facts

3. Black Holes: A
Theoretical Definition
 An area of space-time with a
gravitational field so intense that
its escape velocity far exceeds the
speed of light or at least is equal
to exceeds the speed of light.
 Black holes are, literally, invisible
as they absorb all electromagnetic
radiation, which means none of
our telescopes,X-ray and gamma-
ray - can detect them.

4. In Terms of General Relativity :
 Einstein’s Theory of General
Relativity basically says that
gravity warps space time.
 So black holes warp space-time
as well.

5.  The black hole no
hair theorem
postulates that mass,
charge, and angular
momentum are the
only properties a
black hole can
possess.
 A simplified Model

6. Types Of Black Holes :
 “Normal Sized” Black
Holes
 Microscopic
(Primordial) Sized
 Super-Massive Black
Holes (On the order of
millions to billions of
Solar Masses)

7. First Image Of A Back Hole Event Horizon :
 The EHT released the first
successful image of a black
hole’s event horizon.
 The black hole is at the heart
of galaxy Messier 87.
 The visible ring indicates the
strength of gravity and
gravitational lensing around
the central black hole.

8. How Are Black Holes formed ?
 Stars with a mass at least three times
greater than that of our Sun's can
undergo extreme gravitational
collapse once their fuel depletes.
 With so much mass in a confined
volume, the collective force of gravity
overcomes the rule that usually keeps
multiple atoms from occupying the
same space. All this density creates a
black hole.

9. Interesting Facts:
 Black holes distort time and space around them.
 Supermassive black holes also give birth to stars
and determine how many stars a galaxy gets.
 The first object considered to be a black hole is
Cygnus X-1.

10. Thank You