Recent content by fluoronator

I guess I'm getting old and dumb but I'm having trouble with a basic physics concept, I'm sure you can explain it... Why is kinetic energy 1/2mV^2 and not mV? ***** Example of my confusion no1. Suppose person A has a mass of 1 and a velocity of 10 (on ice skates). Momentum = mV =...

Why are we not able to capture and store light between two mirrors? I'm going to take a guess at the answer but I'd like to hear from someone who knows for sure... I'm wondering if you actually can for a small amount of time, but the inefficiencies of an imperfect mirror cause some light to be...