#heterodyne — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #heterodyne, aggregated by home.social.
-
In 1901, Reginald Fessenden invented heterodyning for combining frequencies, the basis of AM radio transmission. #Poetry #Science #History #Electromagnetism #Heterodyne #Fessenden (https://sharpgiving.com/thebookofscience/items/p1901b.html)
-
Listening to Bats As They Search For Food - The range of human hearing goes up to about 20 kilohertz, which is fine for our pu... - https://hackaday.com/2023/07/14/listening-to-bats-as-they-search-for-food/ #timeexpansion #raspberrypi #batdetector #heterodyne #ultrasonic #op-amp #sound #pico #bat
-
The Theremin is 100 Years Old; Celebrating the Spookiest of Instruments - It wouldn’t be October without Halloween, and it wouldn’t be Halloween without some spooky music. Th... - https://hackaday.com/2020/10/30/the-theremin-is-100-years-old-celebrating-the-spookiest-of-instruments/ #electromagneticfield #leontheremin #radiohacks #heterodyne #oscillator #theremin #history #antenna #news
-
Hack Together Your Own Bat Signal - Bats use echolocation to see objects in front of them. They emit an ultrasonic pulse around 20 kHz... more: https://hackaday.com/2020/07/11/hack-together-your-own-bat-signal/ #digitalaudiohacks #binarycounter #echolocation #heterodyne #ultrasonic #comic-con #cosplay #batman #cd4040 #lm386
-
What Does The Bat Say? Tune In With This Heterodyne Detector - Bats are fascinating animals, and despite all the myth and creepiness surrounding them, they really ... more: https://hackaday.com/2020/06/27/what-does-the-bat-say-tune-in-with-this-heterodyne-detector/ #memsmicrophones #3dprintedcase #batdetector #heterodyne #mischacks #mcp6002 #nature #bats