The myth of Black holes.

1. You Know That???

3. Table Of Contents
1. History of Black Holes.
2. What are the Black Holes?
3. How are Black Holes created?
4. Types of Black Holes?
5. Parts of Black Holes?
6. How to astronomers detect Black Holes?

4. 1. History Of Black Holes
• The first time idea of a black holes suggested in the
let 1790’s By John Michel.
• Later, in 1915, Einstein predicts the existence of
black hole.
• After John Wheeler describe black holes to what it
means.

5. 2. What are Black Holes?
• A Black Holes is a great amount of matter
packed in a small area. It is place in space such
a big gravitational field, that nothing not even
light can escape.
• Scientist can’t directly observe black holes.

6. Cygnus X-1

7. 3. How are black Holes are created?
• One way black holes are created is from dying
stars.

8. Gravity Of Black Holes

9. 4. Types of Black Holes.
• Miniature Black Holes: There types of black
holes is small as atomic particle, these were
created during big bang.
• Supermassive Black Hole: Fast moving and
gravitational force are equal to 10 billion sun
compressed.

10. Supermassive Black Hole

11. 5. Parts of Black Holes?
• The event horizon: This is the part of the black
holes where nothing can get out. It is usually
defined as a big sphere that surround the
black holes.
• The singularity: This is the part of Black
holes. It compressed all mass to a very small
area. Singularity almost infinity density .

12. Event horizon and singularity of black
holes

13. 6. How to astronomers detect Black
Holes?
Black Holes can detected by their gravitational
effect on nearby stars.

14. Chandra X-ray Observatory

15. Remainder
1. History.
2. What?
3. How?
4. Types?
5. Parts?
6. How to astronomers detect?

16. Action
“ Think everything with out Black Holes”