In physics, the mean free path is the average distance travelled by a moving particle (such as an atom, a molecule, a photon) between successive impacts (collisions) which modify its direction or energy or other particle properties.
Read more about Mean Free Path: Derivation, Mean Free Path in Kinetic Theory, Mean Free Path in Radiography, Mean Free Path in Particle Physics, Mean Free Path in Nuclear Physics, Mean Free Path in Optics, Mean Free Path in Acoustics, Examples
Famous quotes containing the words free and/or path:
“Our Germany’s dead. However hard this may be for some of us older people, it’s a blessing for our children. Our children grew up against new backgrounds, new horizons. And they are free. Free to grow up as children. Free to run and to laugh without being forced into uniforms. Without being forced to march up and down streets, singing battle songs.”
—Emeric Pressburger (1902–1988)
“Among the best traitors Ireland has ever had, Mother Church ranks at the very top, a massive obstacle in the path to equality and freedom. She has been a force for conservatism, not on the basis of preserving Catholic doctrine or preventing the corruption of her children, but simply to ward off threats to her own security and influence.”
—Bernadette Devlin (b. 1947)