[forsnax5]

And I do know how to turn a flashlight on and off.

I thought that was an odd example of a way to send binary code -- how would you send two "offs" in a row?

;)

[tjg]

"I thought that was an odd example of a way to send binary code -- how would you send two "offs" in a row?"

You could do it by tying the signals to a clock speed. For example the reciever expects a signal every second (or every microsecond, whatever) and if two seconds pass without a flash of light, that's two 'offs'.

[RJL]

I thought that was an odd example of a way to send binary code -- how would you send two "offs" in a row?

That would be the "nary" in binary. ;-)