One summer, I dropped the bucket into the well After many unsuccessful attempts to get him a metal “cat”, decided to apply for the “guidance” cats of the ring magnet from a powerful speaker dynamics. Hung the magnet from the first time caught the bucket and pulled it out of the well. I would be glad if my experience will be useful to someone else. S. MALEYEV, Bitter
Recommend to read
“Gird-09”
"Gird-09" — the first Soviet experimental rocket, the forerunner of the space rockets of our time. It was created in the Gird (Group of study of reactive motion) under the leadership of...
TO GROW POTATOES? IN THE SAWDUST!
It is possible to invent in all spheres of human activity. And agriculture is no exception. It is known that potatoes are best grown in sandy soil: and plant it well and harvest easy to...
