Do electrons travel at the speed of light?
No. When electrons travel through a vacuum, they can travel quickly, but not at light speed. Q: How do physicists know entanglement works over billions of miles? To date, researchers have only observed the effects of quantum entanglement over a distance of several miles … since we don’t have the technology to observe the effect first-hand at distances spanning much more than that of the Earth and Moon. However, a cosmological experiment was done using quasar 0957+561A,B (Entanglement, The Greatest Mystery in Physics, by Amir D. Aczel pp.92-93) that showed how a photon can simultaneously travel two paths across great distances. A galaxy splits the space between Earth and the quasar, acting as a gravitational lens, thus creating two light rays separated by 50,000 light years. When we observe the arrival of a photon we can, by using half-silvered mirrors, determine which ray the photon travelled or whether it travelled both rays. What makes this experiment interesting is that when we pu
