One of the greatest American inventors known for developing and improving on several devices including the phonograph, the kinetograph (motion picture camera), the kinetoscope (motion picture projector) and the light bulb. Edison promoted the direct current electric system which was in contrast to Nicola Tesla’s alternating current. The latter finally won.
When not in use, an iPod can last upto 28 days on a fully charged battery. At least, that is what is touted by Apple. [more...]