This video, from 1986, demonstrates hand-powered percussion water well drilling. Developed in China in 1100b.c., it was used until the late 1800's, when larger, motorized versions became prevalent.
More information, including our drilling manuals, can be found at:
www.wellspringa...
©1986-2016 Wellspring Africa and Cliff Missen
This video is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
This means you may copy the video and share it widely. If you can, please let us know when you do. It makes us happy.
You may re-use the materials on this CD-ROM for your own purposes, as long as you give Wellspring Africa credit and freely share the resulting works.
Негізгі бет Hand Powered Percussion Water Well Drilling
Пікірлер: 10