2 Ergebnisse für: 3.619.136
-
The Astounding Curta Mechanical Calculator - YouTube
https://www.youtube.com/watch?v=gef695xRNm0&feature=channel
Witness the jaw-dropping ingenuity of this fascinating hand-held mechanical calculating machine.
-
Al Mazyunah free zone project - YouTube
https://www.youtube.com/watch?v=3394DCOujVo
Al Mazyunah free zone project