How did water come to earth? Certainly not after the earth came into being. Water is older than earth. The water we use contains the hydrogen produced by the Big Bang. And the explosion of oxygen stars in it. So...
In the late 1800s, animosity between Edison, a spokesman for direct current (DC), and the George Westinghouse-Tesla alliance in favor of alternating current (AC) became known as the 'current war'. . Edison's company argued that DC was good for commercial...
Recent Comments