Re: EME moonbounce?

[Brian Good <bsgood@gmail.com>]

Daryl, do you mean send an electrical signal through the speaker wire? Electric currents in solids travel at a speed not too different from the speed of light, so if you wanted a one second delay, you'd need a wire on the order of a hundred thousand miles long. There's probably an easier way. :-)

On Thu, Dec 23, 2010 at 9:27 PM, Daryl Shawn <darylshawn@gmail.com> wrote:

I always wondered if one could send a signal through a tremendously long wire, long enough that it would take the sound an appreciable length of time to arrive, thus creating a delay with relatively little loss of fidelity (though I'm sure there'd be a loss of gain, which would need to be made up, thus adding some noise to the end signal). Possible? Should I look around for a five-mile spool of speaker wire and try it out?

I assume that the speed of the signal through the wire would not be limited to the speed of sound in open air, hence it would need to be quite a long length...

Daryl Shawn
www.swanwelder.com

OK, this might be totally technically naiive but with a time delay of around 2 seconds it IS possible to bounce radio signals offf the moon.
Does anyone here know what sort of fidelity the resultant echo would be ? - you can see where I'm going with this...