No-one on the general board seems to have an answer. I really would like help on this one. I am told that two static electrical charges exert a force on each other by the exchange of photons. Nowhere have I read the answers to the following: what are the frequencies/energies of the exchange photons, and if they have infinite range, why cannot they (the photons) be intercepted and measured? - if the charges are very far apart it cannot be that the photons are virtual and have a very short life..... If I opened my eyes would I see exchange particles? Help needed!