Albert Einstein developed the theory of general relativity in 1915 to describe gravity as a geometric property of space and time. General relativity generalizes special relativity and Newton's law of universal gravitation, providing a unified description of gravity as a geometric property of space and time, or spacetime. The theory describes how massive objects curve spacetime and how space and time are dynamically interacted. It has been supported by substantial experimental evidence and is the current description of gravitation in modern physics.

1. General theory of relativity
Made by: Ana Álvarez, Jade Carmena and Miguel
Laredo

2. Index
• Introduction
• General relativity
• Special relativity

3. Introduction
• Albert Einstein
March 14, 1879
Theory of relativity
1905/1915
• German mathematician and physicist
• Nobel Prize
• He finally died April 18, 1955
1921

4. Introduction
General theory of relativity
• Galileo, Isaac Newton and Einstein
• Describes the history and expansion of the universe, the
physics of black holes and the motion of the planets
• Einstein's relativity theory is simple and consists of just
three rules
Special relativity
1905 1915
General relativity

5. Special Relativity

6. General information
• Developed by Albert Einstein in 1905.
• Space and time are linked for objects that are moving at a constant
speed in a straight line(=no acceleration).
• If acceleration is introduced it’s general relativity.
• Equation: E = mc^2 (energy equals mass times the speed of light
squared.)

7. It is based on two postulates
• The laws of physics are identical in all inertial systems (frame of
reference in which a body remains at rest or moves with a constant
speed).
• The speed of light in a vacuum is the same for all observers,
regardless of the motion of the light source.

8. Fundamental experiments

9. 1. Michelson–Morley experiment
• It stated that light is independent from orientation.
Albert Abraham Michelson Edward Morley

10. 2. Kennedy–Thorndike experiment
• It stated that light is independent from velocity
Edward Thorndike Roy J. Kennedy

11. General Relativity
• E = Energy
• m = mass
• c = speed of Light
• ( 299.792.458 km/s-1)

14. Space-time Deformation

15. Worm Hole

16. Conclusion
• Einstein
• Two types:
- General relativity (acceleration)
- Special relativity (no acceleration)