Many readers, building a snowmobile and a boat with propellers, in his letters to the editor are asked to tell how the variable-pitch propellers and what advantages they possess. In response to that request, the published material prepared by the consultant of the public KB, “M-K” on snowmobiles I. N. By juvenalian.
Motorcycle owners know how difficult it is to operate the motor at low speeds — for example, when the motorcycle moves along a dirt bumpy road. Without blowing counter-flow cylinders overheat, the engine loses power, wears out faster… I’m getting out of this situation, using forced cooling. On his “Ural” installed two small fan in Read more…
One who often works with paper and ink, it is recommended to do simple drawing tool simplifies many design works. In principle, it is a cross between a poster with pen and brush. To make it, you need to whittle out wooden planks a simple holder, made of tin to cut two plates and to Read more…
This device will serve you well — will facilitate the drilling of holes: in the grip gear grip force and a half times more than usual, which increases the reliability of fastening, and turn the handwheel Udinese than a normal pen. Changing pads (each of them attached to the jaws by two screws M8), it is possible to clamp items of different configuration Maksimalna thickness up to 80 mm. the design of the grip to the gearbox all the parts are quite simple, made of steel of common grades.
Just 30 minutes will it take to build a simple and reliable time switch that at a given point (in the range of 1-11 h) will switch on or off any home appliance power up to 0.5 kW. The device is made on the basis of a conventional mechanical clock, for example, “amber”, “Sevani”, “Ray”, in a plastic case of which a simple device consisting of two neon lamps T-0,3, a pair of resistors VS-0,25 or MLT-0,5, the micro-switch MP-1, socket for standard plug and fuse.
To prevent access by children to “adult” or colecciones books stored in a shelf with sdvizhnye glasses will help ordinary furniture lock with retractable tongue and bent from steel strip. The thickness of the strips is determined by the gap between the panes.
Another interesting application of the foam found young athletes – “fighters” from Omsk Kühtai. For several years, they are on the original foam models with motors are not only successfully fulfill aerobatic tricks, but also spend real dogfights. Suppose there is no such class in the rules of international competition, albeit not as fast and maneuverable lightest “trains” like real sports boytsovkn. But the “pros” they have more than enough. This is an opportunity to train in the gym and outdoors all year round, regardless of the winter cold, and extraordinary ease of use and “start” motors, and simplicity, and consequently, high maintainability models, and minimum flow abundant materials.
“Voiced” model tractor, car or locomotive immediately “alive”, if you supply electronic simulator sound. The scheme of the device, imitating the “voice” of the internal combustion engine, printed Yugoslav magazine “Radioamator”.
What place does the bread on our table, understandable and to the children no wonder the old Russian saying says: “Bread is a head”. Frugal, rational use of it depends on how long he will be fresh. Someone according to ancient tradition, put it in a special canvas bag, others prefer the plastic bag, the majority is in the kitchen breadbox. The most common version, mastered by the industry, one – or two-piece metal container. No doubt, these boxes are hygienic, have, as a rule, a pleasing shape and color, but… the bread they stale faster, I would not want.
…the handiwork of drowning! This well-known phrase is the best suited to the device, developed by a reader of our magazine Odessa Shkolnik, Rodion Chernopole. It is intended for high-speed RC boat. These microglossary in training and at competitions tend to dive under the water and… emerges. The owner located after the model and get it. Well, if the water is warm and it is possible to save the sunken vessel, which spent at least a few months of hard work. And if not?