posted on Feb, 20 2006 @ 06:45 PM
I've been wondering......
Why would ET be using radio waves to contact us? Why not light waves?
It's a simple matter to modulate a light beam.
It's also simple to receive the signal.
Oversimplified, but it would actually work:
1. Take a cadmium sulfide photo cell (or a solar cell) and hot glue it to a telescope eyepiece (hot glue peels off easily).
2. Attach a small amplifier to the cell and turn it on.
3. Rig up some stepper motors and some all-thread rod to a computer to make your telescope slowly scan a sector of the sky.
4. Listen (preferrably with headphones).
I haven't tried this yet, but maybe this summer.