March 27, 2017
Just a fast tutorial on how to make your own laser communicator, where to get the parts, and how far can it send messages into space to talk to aliens. (Note: red laser is not useful, must have green (100 mw or bigger) or violet laser (my violet pen laser is 350mw) to reach space in a compact form).
Scott C. Waring
Thanks to Scott at: http://www.ufosightingsdaily.com