A boat with a rower moves much faster than a swimming person, even with fins, although the drag force is three or even four times greater. The efficiency of oars is higher than that of arms, and the “power” developed by a person in a boat is also higher… The strongest human muscles work — Read more…
When creating mechanical weeders, walk-behind tractors, and other small-scale mechanization equipment, DIY enthusiasts face a whole range of problems: from working out the kinematics (reliability, compactness, originality of technical solutions), acquiring components and parts for the intended machine (an inexpensive engine, for example), to assembling and debugging the entire structure. The material published below tells Read more…
Any front panels made of aluminum alloy are easily amenable to decorative processing. For example, after drilling holes in them, these parts can first be subjected to anodizing, and then painted. Both processes do not require special equipment and can easily be performed at home. Small panels are anodized in a glass cuvette. Distilled water Read more…
In a homestead or dacha farm, even a small one, any mechanized cargo vehicle is a great help. It saves both time and effort. Of course, when it’s simple and reliable. It’s desirable that the machine be small in size for maneuverability and have sufficient power (even at the expense of speed). Its cross-country ability Read more…
A canvas tent stretched over a frame made of steel pipes for electrical wiring will perfectly protect the fisherman from the scorching sun rays. The canopy size is designed for a boat 4.5 m long. The ends of the frame tubes are flattened, and holes Ø 5 mm are drilled in them. The connection is Read more…
Before proceeding to describe the snowmobile “Turtle-2”, I’ll tell you about the history of its creation. This happened thanks to an all-terrain vehicle — a predecessor with the same name, only with the index “1”. That one was a two-wheeled machine on low-pressure pneumatic tires with a D-8 engine with a power of 1.2 hp. Read more…
I read in your magazine how frozen water columns can be heated with steam. I recalled another application of a similar device — for heating people in camping conditions: in a tent, a hut, under an awning on a boat — after all, you can’t light a fire inside. In this case, a portable steam Read more…
The advantages of compact folding boats are obvious, the disadvantages too. In one of the old issues of the “Modelist-Konstruktor” magazine (on the last page of the cover), photographs and a brief description of a folding trimaran by Leningrad shipbuilder V.A. Vakulenko were published. His trimaran consisted of three folding hulls arranged in a triangle Read more…
Everyone who decides to engage in beekeeping must prepare themselves for many things. Including the fact that they will have to “remove” swarms alone. This task, I know from experience, is far from simple. After all, bees “graft” (land during swarming) often in places where it is not easy for a person (without appropriate training, Read more…
Once an old friend Igor came to me with an unsolvable (as he said) problem. After the demarcation of the common plot of a four-apartment house where he lives, it was necessary to make and install sliding gates with a six-meter span and an integrated gate. After calling all local and regional companies, he was Read more…
