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.

• 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.

This material provides an understanding of elasticity. An understanding of elasticity is necessary for an understanding of my theories. -sz