FreeDV Sunday net - 14 stations
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The weekly FreeDV net on 40m in South Eastern Australia was excellent this
morning despite wet weather here. Mark, VK5QI had planned a balloon launch
that ...
9 hours ago
A poster print of this chart is available for purchase at http://www.imagekind.com/Chart-of-Electromagnetic-Radiations-art?IMID=54f0f01b-ca7d-4fff-a45e-8f21186f85bd.
ReplyDelete-George KB3ODH
Wow indeed! It's spectacular. Editor Arthur H. Compton was a Nobel laureate and a major leader in the Manhattan Project. It's astonishing that he took time in 1944 for this. He was very committed to education.
ReplyDeletehttp://en.wikipedia.org/wiki/Arthur_Compton