Comment on Stupid Questions, December 2015

Mon, 07 Dec 2015 15:32:24 GMT

For example, at high enough frequencies, a single photon has enough energy to create a positron-electron pair in free space. Photons at that frequency don't travel very far before they are destroyed by such a spontaneous generation of particles.

So what kind of energies are we talking about here, and what distances?

Discuss