John Wiley & Sons
Wiley: Physical Geography: Animation: Wave Refraction
A brief animation that demonstrates the impact of waves on headlands and on bays explaining how waves shape sea arches and beaches.
Nobel Media AB
The Nobel Prize: The Quantised World
After an introduction, this site breaks down into sections discussion quantum theory, including A Quantum Theory for Energy, A Quantum Theory for Atomic Structures, Waves or Particles, Quantum Mechanics, and Interpreting the Quantum World.