Examples for

# Physical Principles

The laws of physics govern all physical phenomena in the universe. Use Wolfram|Alpha to obtain detailed information about important and well-known laws, principles, effects and phenomena in physics, including descriptions, dates, investigators, formulas, limitations and more.

### Classical Results

Explore classical laws of physics.

#### Find out about Newton's laws:

#### Learn about the motion of planets:

#### Get information about thermodynamics:

### Famous Paradoxes

Elicit counterintuitive consequences of quantum and relativistic theory.

#### Learn about the interface between microscopic and macroscopic phenomenon:

#### Find out about a paradox in relativity:

#### Learn about a paradox in quantum mechanics:

### Interesting Modern Results

Learn about important physical results from the last two centuries.