Fermilab | Do photons experience time? @fermilab | Uploaded 1 year ago | Updated 1 hour ago
In relativity theory, fast moving clocks tick more slowly than slow moving ones. The effect increases as one approaches the speed of light. But what happens at the speed of light? Do photons experience time? In this video, Fermilab’s Dr. Don Lincoln lays out what we know about this interesting question.

Relativity: how people get time dilation wrong:
youtube.com/watch?v=svwWKi9sSAA

Twin paradox: the real explanation:
youtube.com/watch?v=GgvajuvSpF4

Twin paradox: the real explanation (no math):
youtube.com/watch?v=noaGNuQCW8A

Relativity's key concept: Lorentz gamma:
youtube.com/watch?v=qXxtqK7G4Uw

Length contraction: the real explanation:
youtube.com/watch?v=-Poz_95_0RA

Fermilab physics 101:
fnal.gov/pub/science/particle-physics-101/index.html

Fermilab home page:
fnal.gov