3 ms·
It's been doable since the 1940's. https://patents.google.com/patent/US2981843A/en https://patents.google.com/patent/US2981843A/en
by labcomputer 4mo ago
It's been doable since the 1940's.
https://patents.google.com/patent/US2981843A/en https://patents.google.com/patent/US2981843A/en