The Lighthouse image
The lighthouse of Miyako Minna island 
posted by iotaman at 10:51 PM
A letter to myself Amateur radio was a seed of creativity. Amateur radio has various seeds for Science. When a child just touch unknown devices, solder each other in easy order, The child surprise to hear a sound from Radio broadcasting. So the child finds the devices create the radiowave to audio. Aamateur radio operator has such a common experience.
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