Jun 8 • Physics
Billows in the Ionosphere Are Tracked with Transistor Radios
In the last few weeks, quite a few posts have appeared on this forum on exploring the inner workings of the Earth's ionosphere. Here's another addition for the ambitious mad scientist to consider. It comes from September 1980 issue of The Amateur Scientist, and it explains how one can inexpensively detect "gravity waves" as they roll through the upper-most reaches of the earth's atmosphere. (Note: The term "gravity wave" here refers to very long period pressure waves that use gravity as their restoring force, and NOT ripples in space-time that are created by collapsing stars.) This is a fun electronics product that could easily be improved these days using better op amps and current amplifiers than were available way back when I was still an undergraduate.
Enjoy!
PS: Apparently some of the images aren't displaying on the online link. So I've attached them all here until I can get them fixed on the server.
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Billows in the Ionosphere Are Tracked with Transistor Radios
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