Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
SlideShare a Scribd company logo

Black holes

•Download as PPTX, PDF•
•
kongaralalith
kongaralalith

This document discusses black holes, including their formation from collapsed stars, composition of an event horizon and singularity, and properties like rotating black holes dragging space-time and Hawking radiation causing black holes to evaporate. It also briefly mentions worm holes and what would happen if one were to fall into a black hole.

1 of 12
BLACK HOLES K.D.SRINIVAS 15481A04A1 K.HEMANTH 15481A04A3 K.LALITH 15481A04B9 Submitted to Dr. Vijaya Lakshmi
Contents What is a black hole? Formation of a black hole Composition of black hole Rotating black holes Contribution of Stephen Hawking Relation bw Black hole & Worm hole What happens when you fall into black hole? Fascinating facts about black holes A brief Summary
A few definitions from the dictionary:  Region of space resulting from the collapse of a star  Region of space with strong gravitational field  Dungeon or dark cell in a prison A black hole is a place in space where gravity pulls so much that even light can not get out
 Formed when a star collapses  Collapse of star produces Neutron star & Black Hole  Compression of any object into its Schwarzschild radius gives a Black Hole
They consist of:  Event horizon  Singularity Event horizon Completely black and reflects nothing. Once entered no escaping back. Empty and full of gravity.
Singularity  Density= ∞?  Volume= 0?  Surface area= 0?  Gravity= ∞ Schwarzschild radius Singularity
 A rotating black hole has an ergo sphere around the outside of the event horizon.  In the ergo sphere, space and time themselves are dragged along with the rotation of the black hole
Contribution of Stephen Hawking Black holes evaporate eventually by phenomenon Hawking Radiation
But new research suggests that, if a speculative theory called loop quantum gravity is right, white holes could be real Worm hole warps space time Hypothesis only
What happens when you fall into Black Hole? As you fall into to a black hole, you shine a blue flashlight at a friend exterior to the hole, he sees
• • • • Do you know?
Black holes

More Related Content

Black holes

  • 1. BLACK HOLES K.D.SRINIVAS 15481A04A1 K.HEMANTH 15481A04A3 K.LALITH 15481A04B9 Submitted to Dr. Vijaya Lakshmi
  • 2. Contents What is a black hole? Formation of a black hole Composition of black hole Rotating black holes Contribution of Stephen Hawking Relation bw Black hole & Worm hole What happens when you fall into black hole? Fascinating facts about black holes A brief Summary
  • 3. A few definitions from the dictionary:  Region of space resulting from the collapse of a star  Region of space with strong gravitational field  Dungeon or dark cell in a prison A black hole is a place in space where gravity pulls so much that even light can not get out
  • 4.  Formed when a star collapses  Collapse of star produces Neutron star & Black Hole  Compression of any object into its Schwarzschild radius gives a Black Hole
  • 5. They consist of:  Event horizon  Singularity Event horizon Completely black and reflects nothing. Once entered no escaping back. Empty and full of gravity.
  • 6. Singularity  Density= ∞?  Volume= 0?  Surface area= 0?  Gravity= ∞ Schwarzschild radius Singularity
  • 7.  A rotating black hole has an ergo sphere around the outside of the event horizon.  In the ergo sphere, space and time themselves are dragged along with the rotation of the black hole
  • 8. Contribution of Stephen Hawking Black holes evaporate eventually by phenomenon Hawking Radiation
  • 9. But new research suggests that, if a speculative theory called loop quantum gravity is right, white holes could be real Worm hole warps space time Hypothesis only
  • 10. What happens when you fall into Black Hole? As you fall into to a black hole, you shine a blue flashlight at a friend exterior to the hole, he sees