Change: styrofoamStyrofoam (or anything you can stick things in, really)1 square inch of tape1 square inch of tinfoil (or any small metal object)1 battery (use a 9 volt at least)Several miles of wire (I am not joking; see below text for an alternative)I   View changes from previous version. (Word count: 698)

Change: any kind of battery.Another Idea I Just Had For A Wireless Morse Code TransmitterThis would work for a very short range transmitter; but it's wireless, and even portable.-Take apart a remote control car-Using wires, replace the little batteries in   View changes from previous version. (Word count: 698)

Change: of no more than half a mile, if you're lucky.mile. The more voltage you use, the more range you'll have--that is, unless you use too many batteries and short circuit it; frying the car and burning your fingers. This isn't exactly super-advanced technology.   View changes from previous version. (Word count: 692)

Change:  Of course, the phone network will be down; but if the phone lines are still up, simply scamper up a pole, tear down a wire   View changes from previous version. (Word count: 470)