Ein Mobilfunkhandy von 1922 und ein 3D-Scanner und -Drucker von 1939
Echt oder Fake? It was 1922 and the first “wireless phone” was demonstrated on the street, in the rain. This ‘Cat’s Whisker’ technology connected ground to the fire hydrant and the antenna is the wire in the umbrella. Up to a 10 mile distance. 1922. pic.twitter.com/xYVorfHLSi — Brian Roemmele (@BrianRoemmele) September 30, 2022 It was […]