siiky
2023/02/10
2023/02/10
2023/02/13
video,engineering,science
https://invidious.snopyta.org/watch?v=HYyyx2dNvPw
Video about Roman concrete. Like I wrote on my tinylog in ยง2023-01-29 01:41, I didn't quite understand what was the big leap, because I watched two more videos of several years ago showing how to make Roman concrete.