fax machine

[tartwitahart]

ive always wondered how a fax machine works because you put the paper in 1 machine and it ust appears in another!!!

[smorodina]

All it does is scan the paper and when it sees white it transmits a '0' (or no pulse tone) and when it sees black it transmits a '1' (pulse tone). The receiving fax just reverses the process and prints white for '0' and black for '1' and - voila! - reproduces the original. The excellent Tim Hunkin did a tv show on this a few years back.

[Hammer]

Think of it as sending an email, but with a built in scanner at one end and printer at the other end.

[Brocky_c]

Nice!

how does the telephone work??

[mikeyp]

The telephone? It works by converting your voice into an electrical signal using a microphone. This then is sent to another phone that uses a speaker to convert the signal back.

http://electronics.howstuffworks.com/telephone.htm

[5029]

The paper doesnt actually go anywhere, just the information is taken from the sender's paper and printed onto the receiver's paper