I need to know about the speed of sounds.?
If you yave a gunshot it is going at the speed of sound. If you shoot two guns at the very same time with really no time difference then they, the sound, would be going twice the speed of sound. then if you had two flashlights and turned them both on at the same particle of time then would'nt they be (the light that is) be moving at twice the speed of sound? This means is I had a mirror that had 100 percent reflection i could reflect back the light and it would get there before it left the bulb and if I had a really efficient photocell it could power itsellf and only need a battery to start up.Maybe I could even start it by flashing a strobe flash from a disposable camera at it. Can somebody give me a link for the best photocell you can find.