## What is the theory of relativity?

The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity. Special relativity applies to elementary particles and their interactions, describing all their physical phenomena except gravity.

## How has Einstein’s theory of relativity changed our understanding of the universe?

How has it revolutionized our understanding of the workings of our universe? Within Einstein’s theory of relativity, there are actually two theories: special theory and general theory. The former applies to all physical phenomena discounting gravity, and the latter explains the gravitational force in relation to the other forces of the universe.

**What do you think about special relativity?**

Special relativity is a fairly thorough, self contained theory in its domain. “Only because nobody stopped to consider its implications. I am sure it is quite central to how the Universe really is and works.

### Who published the theory of special relativity?

Albert Einstein published the theory of special relativity in 1905, building on many theoretical results and empirical findings obtained by Albert A. Michelson, Hendrik Lorentz, Henri Poincaré and others. Max Planck, Hermann Minkowski and others did subsequent work.

### Is relativity a falsifiable theory?

Relativity is a falsifiable theory: It makes predictions that can be tested by experiment. In the case of special relativity, these include the principle of relativity, the constancy of the speed of light, and time dilation.

**How did the discovery of relativity change the world?**

In the field of physics, relativity improved the science of elementary particles and their fundamental interactions, along with ushering in the nuclear age. With relativity, cosmology and astrophysics predicted extraordinary astronomical phenomena such as neutron stars, black holes, and gravitational waves.