In homes today, it is used quite a lot of galvanic power sources (batteries). Even the most “long-playing”-of them at the end of life just thrown away, though their metal body remains as entire as at first. If you take it apart, it would make a great ring to strengthen the wooden handles of files, needle files, awls, cutters for turning operations on a tree.
A. PISKUNOV, S. L o V C s. Moscow region
Recommend to read
THE ‘MOLE’ TO THE RESCUE
Aviation mechanic M.A. Masterov is one of that remarkable group of amateur designers that the Udmurt land has always been proud of. His achievements include such serious works as delta-...
ROTOCUT CHAMPION
The name of the athlete rakatomalala Igor Ponomarev, that is, "hearing" and "rocket scientists" and, hopefully, our readers. His technical model development are of genuine interest. For...
