A joint Fermilab/SLAC publication
Illustration of  Wave-particle duality, person on beach under wave

Wave-particle duality

The concept of wave-particle duality ascribes two seemingly contradictory traits to a single object.

Illustration of 3D glasses in space with ballerinas spinning in red and blue lenses


Objects as large as a planet or as small as a photon can have the property of spin. Spin is also the reason we can watch movies in 3D.