Physics Questions People Ask Fermilab

Over the years, people have sent questions to Fermilab on subjects from why the sky is blue to the speed limit of the universe. Here are a selection of the most interesting questions and informative answers. If you have a question for Fermilab, email us. When submitting a question, please provide your age or profession. It helps our scientists to write a better response.

• Particles and their properties
  Quarks, leptons and bosons, spin and mass, antimatter

• Forces and interactions
  Strong, weak, electromagnetic and gravitational, particle-wave dualism

• Particle theories
  Quantum fields, superstrings and all that

• Accelerators
  Bringing particles to almost the speed of light

• Particle detectors
  Capturing the tracks of particles

• Physics of the universe
  From the big bang to black holes, extra dimensions, space and time

• Special and general relativity
  Physics at the speed of light

• General physics
  From very cold to very hot – and everything in between