Feynman Lectures on Physics:

1
Feynman Lectures on Physics

• The Relation of Physics to Other Sciences

2
Chemistry

• The science which is perhaps the most deeply
  affected by physics is chemistry

• Inorganic
• Atoms (shells, nuclear moments, energies)
• Quantum chemistry (orbitals, wavefunctions)
• Statistical mechanics (thermodynamics, kinetics
• Organic
• Photo-physics (excitons, charge transfer)
• Organic reactions (synthesis, molecular structure

3
Biology

• the biologists went into the machinery inside
  the living bodies

• Conservation of energy
• Heat transfer in living things
• Circulation of blood
• Pressure
• Pumps and valves
• Nerves
• Capacitors, circuits

4
Astronomy

• Astronomy is older than physics. In fact, it got
  physics started

• Stars
• Elements, radiation, fusion, light
• Planets
• Motion, orbits, magnetic fields, atmosphere
• Universe
• Microwave radiation, Doppler effect, string theory

5
Geology

• Of course the instruments of meteorology are
  physical instruments

• Weather
• Sun and radiation, turbulence, rain droplets,
  lightning
• Rock formations
• volcanos, eathquakes, erosion
• Earths structure
• Waves, pressure, high temperature thermodynamics.

6
Psychology

• psycho-analysis is not a science it is at best
  a medical process, and perhaps even more like
  witch- doctoring

• Brain
• Electrical impulses, physical chemical processes,
  computing neurons
• Interpretation of images and sounds
• Experimental methods

7
How did it get that way?

• There is no historical question being studied in
  physics at the present time. We do not have a
  question, "Here are the laws of physics, how did
  they get that way?"

• If we understand all about biology, we will want
  to know how all the things which are on the earth
  got there. There is the theory of evolution, an
  important part of biology
• In geology, we not only want to know how the
  mountains are forming, but how the entire earth
  was formed in the be- ginning, the origin of the
  solar system, etc.

8
Example A Birds Brain