filmov
tv
The Hand Pump That Will Change The World
Показать описание
How to Build a Village Hand Pump - Engineering for the Developing World
hand pump platfrom desing
#How to Build a Village Hand Pump - Engineering for the Developing World
#y. v. construction
#village hand pump design
hand pump platfrom desing
#How to Build a Village Hand Pump - Engineering for the Developing World
#y. v. construction
#village hand pump design
0:00:11
0:02:20
0:00:59
0:14:13
0:23:39
0:00:30
0:07:29
0:20:45
0:16:22
0:15:24
0:00:51
0:02:51
0:24:05
0:13:34
0:01:06
0:02:50
0:00:15
0:07:53
0:08:26
0:06:12
0:18:38
0:09:15
0:00:37
0:16:56