Einstein

Definition

Einstein was a theoretical physicist who developed the theory of relativity, fundamentally changing our understanding of space, time, and energy. His work has had profound implications for astronomy and cosmology.

5 Must Know Facts For Your Next Test

1. Einstein's theory of general relativity describes gravity as the curvature of spacetime caused by mass.
2. The famous equation E=mc^2 from Einstein’s special relativity shows the equivalence of mass and energy.
3. Einstein predicted the bending of light by gravity, which was confirmed during a solar eclipse in 1919.
4. His theories have been essential in understanding black holes, where spacetime curvature becomes extreme.
5. Einstein’s work laid the groundwork for modern cosmology, including the Big Bang theory.

Review Questions

• What is the significance of Einstein's equation E=mc^2?
• How does Einstein's theory of general relativity describe gravity?
• What observational evidence first confirmed Einstein's prediction about light bending?

Related terms

Special Relativity: A theory formulated by Einstein that deals with objects moving at constant speeds, particularly those close to the speed of light.

Spacetime: A four-dimensional continuum combining the three dimensions of space with one dimension of time.

Black Hole: A region in space where gravitational forces are so strong that nothing, not even light, can escape from it.