09-19-2023, 11:26 PM
AN inexpensive apparatus designed by Douglas A. Kohl of Osseo, Minn., for the detection of gravity waves traveling through the ionosphere
Billows in the Ionosphere Are Tracked with Transistor Radios.pdf (Size: 5.54 MB / Downloads: 11)
Billows in the Ionosphere Are Tracked with Transistor Radios.pdf (Size: 5.54 MB / Downloads: 11)