The idea of ‘classical physics’ stems from:

However, not much was known about atoms and subatomic particles.

Inconsistencies

  • Addition of velocities in multiple reference frames was inconsistent with Maxwell finding out that a EM Wave always moves at the speed of light.

  • Blackbody effect: The thermal radiation released from a blackbody is predicted by classical physics to be proportional to it’s temperature. However, the wavele

  • Photoelectric effect

  • Hydrogen emission