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 BOAT IS SIMILAR TO “DONUT”
What kid does not dream of seas oceans; who as a child dreams of becoming a sailor? If there is at least some trickle — what kid can resist the temptation to put him on a boat! And if...
CREATIVE ECCENTRICITIES
In the last issue we talked about some experiments with the construction of submarines made by the British Admiralty during the First world war. It should be noted, is not the most...
