When preparing a rubber-powered aircraft model for launch, rubber breakage is not uncommon. As a rule, the secured strand, which has a lot of energy, then destroys the propeller and injures the modeler. Recently, many people have been using a protective disc made of plastic, metal, or plywood, which is installed between the rubber motor Read more…
After a long DIY construction project of my own — or rather a major renovation of a purchased country house — it turned out that we would have to move in not only to “bare walls,” but also practically with empty pockets. I think some readers of this magazine I respect so much may find Read more…
Folk wisdom insistently advises counting chickens in the autumn. Without hesitation, however, let us note: in a period of total shortage that has swept the country, one cannot fail to take care of the timely acquisition of the “source material” — those same live fluffy little balls that are supposed to turn into future broody Read more…
I offer hobbyists a homemade desktop drilling machine that uses a hand drill. A hollow tubular column is mounted on a sturdy base, and a rod is installed inside it so that it can move. On one side of the rod a toothed rack is cut for the vertical feed drive, and on the other Read more…
Which exhibition exhibit is the most interesting? Obviously, the one with the most visitors, the one most often aimed at by camera lenses. That exhibit at the 1984 Moscow City Exhibition of Youth Scientific and Technical Creativity was the “Vyatka-1M” walk-behind tractor, built in the auto-design club of the Palace of Pioneers and Schoolchildren named Read more…
I offer you a shelf of a very simple design, consisting of just five parts. The reason for making it was that I had accumulated a large number of baby-food jars. The shelf is designed to hold five jars, although their number can be increased or decreased by changing the dimensions of the corresponding parts. Read more…
In a well-known encyclopedia of the century before last, “Industry and Technology,” in the volume on the “processing of fibrous substances,” which wood also is, it is said that “in work on dividing wood … splitting is of importance.” And further: “a wedge-shaped tool bends apart the parts of the wood being separated; here the Read more…
Every time the whole family is getting ready for a vacation, I have the task of checking the condition of our bicycles. As a rule, all the parts are in perfect order, except for the tires: they need to be inflated periodically. That’s when you sometimes have to work up a sweat, and a lot Read more…
It is well known that metal hacksaw blades are made of excellent steel, so any fragment, even a small one, can be considered a starting blank for a wide variety of cutting tools. The options given here are far from exhausting the variety of devices that can be made from broken saw blades. First of Read more…
As is well known, sun, air, and water create the most favorable conditions for recreation. So it is no surprise that on a hot sunny day so many people gather on sea beaches and by the banks of a river or pond that there is literally no room to spare. Unfortunately, well-equipped beaches are few. Read more…
