Sovereign of Doom
Posts: 629
Joined: Thu Nov 04, 2010 11:24 am
Wed Dec 15, 2010 2:41 pm
Hand powered drilling tools and machines
Hand powered drilling tools and machines
by Kris de Decker
http://energybulletin.net/stories/2010- ... d-machines
good references below and nice article above - about the history of
making holes in stuff (without electrity) - could be important info
by Kris de Decker
http://energybulletin.net/stories/2010- ... d-machines
good references below and nice article above - about the history of
making holes in stuff (without electrity) - could be important info
