I am looking for a pocket-sized external battery to work with a handheld DVR. The manufacturer does make an external battery pack, however the manufacturer of the device is located in Korea, and no US dealers sell it.
From the product manual, it states that the manufacturer's external battery...
Thanks Paul,
What I still don't get though, is how can the moving craft experience the light beam at the normal speed of light?
Speed is distance traveled over a period of time. I know that the speed of light is constant regardless of the frame of reference. I know that time slows down...
I am having difficulty wrapping my mind around Einstein's relativity, and am wondering if someone can please help to enlighten me.
My Physics teacher explained Einstein's relativity like this - say there were two spacecraft , one speeding forward and the other is standing still. If each...