Roman technology level: DIY battery and bubble telegraph
Channel: Alone in the Kitchen — by Nino Ivanov
Date: 2022-09-29

Shown is how you can make a battery out of one-Cent-coins, and, on a separate venue, how you can construct a simple bubble telegraph based on electrolysis of salt solution. This should be on a technology level that has been possible in ancient times.


#roman #ancient #technology #battery #telegraph