You've seen that bird that constantly drinks, mayb... ...o such thing. How does it work? Bill Hammack, the Engineer Guy (previously at Neatorama) explains that toy that...
https://www.neatorama.com/2018/01/30/How-the-Drinking-Bird-Works/
How the Drinking Bird Works...
Theremin: How Science Fiction Got its Sound...
[http://youtu.be/4wQsWL-lMJw] (YouTube link)Bill H... ...u.be/4wQsWL-lMJw] (YouTube link)Bill Hammack, the Engineer Guy , explains how that weird electronic musical instr...
https://www.neatorama.com/2014/07/25/Theremin-How-Science-Fiction-Got-its-Sound/
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