Thomson's discovery of the electron is another interesting point, Thomson wasn't the first person to find an electron he was the first person to realise that the blue line could be described in terms of particles.
Why do we still say mass is conserved in science?
Naming of particles and their properties is interesting. Spin makes you think the particles are spinning but do they really? Are quarks charming and strange? Do quarks have flavour?
The scientific method: We use the wave model to explain diffraction and interference effects of light but it cannot explain the photoelectric effect so we have to modify the model.
Heisenberg’s Uncertainty Principle states that there is a theoretical limit to the precision with which we can know the momentum and the position of a particle. What are the implications of this for the limits of human knowledge?
“One aim of the physical sciences has been to give an exact picture of the material world. One achievement ... has been to prove that this aim is unattainable.” —Jacob Bronowski. What are the implications of this claim for the aspirations of natural sciences in particular and for knowledge in general?