Richard Feynman was recognized for his excellent lectures. Feynman, along with Tomonaga and Schwinger, were recognized in 1965 with a Nobel Prize in Physics “for their fundamental work in quantum electrodynamics, with deep-ploughing consequences for the physics of elementary particles.”

This material is free and easily accessible. These sections cover elasticity up to simple wave motion. This material is necessary for an understanding of elasticity. An understanding of elasticity is necessary for an understanding of my theories.

• Feynman Lectures The Feynman Lectures on Physics
  • Volume II TOC Mainly electromagnetism and matter
    • Chapter 38 Elasticity
      • Section 38–1 Hooke’s law
      • Section 38–2 Uniform strains
      • Section 38–3 The torsion bar; shear waves

The prerequisite for 38-1 and 38-2 is algebra; for 38-3 it is partial differential equations, which is just an algebra with small quantities.