![]() ![]() We ended up using a magnetic copper wire stretching over fifty feet as our antenna, which sacrificed historical accuracy, but it was nonetheless successful. ![]() ![]() However, after several tries, we were able to get a (faint but audible) radio signal. Our first attempt was met with limited success. We chose this project to demonstrate electrical currents and radio waves. As impressive as anything else made by the POWs of the day, these foxhole radios are still made by Boy Scouts and hobbyists. While not always successful, these “foxhole” radios, as they were called, would pick up German and occasionally even British stations if they were carefully made. Fairly straightforward and simple to make, these devices harnessed local materials using an impressive amount of understanding of scientific principles, and made them into a working radio set. One of the most resourceful and impressive of these was something called a crystal radio. In WWII, ally POWs invented some ingenious devices while imprisoned. ![]()
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