are plugged into a wall socket (unless they are battery powered), electricity powers the world.

Your email travels on the cable (not the power cord) to the Time Warner servers, from there to your friend's Internet server. When your friend dials up and connects to his server, the email is delivered down his phone line.

Wayne (IBM freak - 6)

Click here to see the CNet faces, learn a little about analog and digital data, Internet connections, Spyware removal, and download free software (and a GREAT chocolate-cherry cobbler recipe).
My mini-Schnauzer is smarter than your honor student.