Car enthusiasts and owners of agricultural machinery know first-hand how great the danger of suddenly ending up without wheels is. That is why they are ready to go to any lengths and spend money in search of patented “secrets” (fortunately, their number has long been in the hundreds), just to protect their cars from intruders. Read more…
The idea of creating a small four-wheeled carriage with an electric drive for pleasure trips around the picturesque surroundings of Peterhof came to us last year. Before that, we built a two-wheeled vehicle that was driven by an electric drill, powered by a car battery through a transistor voltage converter. But the vehicle was difficult Read more…
Dear editors! I am a long-time subscriber of yours, I have used many of the practical publications for home use and I eagerly await the next magazine every time: will there be something useful for DIYers there again? In the February issue I was interested in the article about protecting country buildings from lightning. I Read more…
In issue 6 for 2010, Modelist-Konstruktor told about repair and adjustment of a trimmer – a motor or electric scythe. The article is useful . What can I say, this tool is now widely used not only by summer residents and janitors, but also by farmers. Meanwhile, on small plots, in hard-to-reach places, an ordinary Read more…
Instead of the usual steering wheel, I installed a column of the front manual drive of a two-stage chain transmission on the bicycle machine (Fig. 1). When moving, depending on the height of the cyclist, the angle of the column can be easily changed. The saddle is moved back. Both wheels are leading, have five-speed Read more…
It often happens that guides on how to build a boat yourself simply scare off beginners with such “mysterious” words as “epoxy resins,” “foam,” “fiberglass,” “bakelized” or “aircraft plywood,” etc. More experienced boaters are scared by something else: the difficulty of acquiring these materials. Meanwhile, a good boat can be built from simple materials available Read more…
The experimental winnowing machine-sorter is designed for selection work. The winnowing machine body is made of pine beams, to which the side plywood walls are attached. The beams are assembled into a tongue and groove in half a tree. The receiving bucket is equipped with a flap, the movement of which regulates the grain feed. Read more…
No matter how much we talk about the windsurfer being the smallest sailboat, you still can’t get on a trolleybus with it. To transport a sailboard, you need at least a car. Of course, it is possible to transport a boat about 3.5 m long on public transport, but… …it would be better if it Read more…
Electric drive? For a boat? So, doesn’t our industry produce enough gasoline outboard motors? Go to a sports store and choose any one – from the lightest, suitable even for a kayak, to the heavy and powerful Neptune. But we still need crystal clear water without an oil-and-gasoline rainbow on the surface, we need undeterred Read more…
It’s getting dark. The sun is slowly setting towards the horizon. Dusk is coming. It’s still early to go to bed, I want to read and play chess. For motorists, energy for lighting is provided by a rechargeable battery. But hikers can also use electric lighting with no less success – a pocket wind power Read more…
