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:
“If you are ready to leave father and mother, and brother and sister, and wife and child and friends, and never see them again,—if you have paid your debts and made your will, and settled all your affairs, and are a free man, then you are ready for a walk.”
—Henry David Thoreau (1817–1862)
“She’s in the house.
She’s at turn after turn.
She’s behind me.
She’s in front of me.
She’s in my bed.
She’s on path after path,
and I’m weak from want of her.
O heart,
there is no reality for me
other than she she
she she she she
in the whole of the reeling world.
And philosophers talk about Oneness.”
—Amaru (c. seventh century A.D.)