Every gardener strives to heat their greenhouse as efficiently as possible. One of the most optimal methods is utilizing solar heat accumulated by the southern or eastern wall of a stone house. Building such a heliogreenhouse is quite simple. First, a trench is dug along the wall of the house, 1.1 meters deep and 0.8 Read more…
If someone had told the author some time ago that he would have to literally “reinvent the bicycle,” he would have taken it as a joke. However, that skepticism vanished after coming across a magazine article describing a “wind vehicle” built by Alexander Dvoynikov. The model had both air and propeller screws mounted on an Read more…
Boys seem to have a natural pull toward technology — probably something embedded in their genes. Yet, there’s a fairly long period in their lives (that so-called “transition age”) when they consider playing with toy cars too childish, but driving a real car is still not an option — and often, not even available to Read more…
“I read in Modelist-Konstruktor about the continuation of the “Small Mechanization” competition and decided to take part. I offer a simple and compact micro-mill. Its dimensions can be judged from the photo: the entire construction fits in the palm of my hand. It’s a universal device — designed for producing both coarse and fine corn Read more…
Dear “Modelist-Konstruktor”! In issue No. 9 for 2004 of your magazine, a material was published about a compressor I made based on a motor-compressor from an old refrigerator. I used it for several years for various needs: paint spraying, tire inflation, and other tasks. But sometimes it lacked pressure and air reserve. Then the idea Read more…
Many outdoor enthusiasts prefer cycling trips to other forms of short travel, such as hiking or driving. Walking allows you to fully enjoy the beauty of nature and take in the surroundings at your own pace, but unfortunately, only in the immediate area. Driving, on the other hand, means you interact more with the road Read more…
There’s no point in comparing a scooter and a passenger car — they are completely different machines. Nevertheless, motorcycle designers constantly strive to bring the comfort of four-wheeled vehicles to their two-wheeled counterparts. In recent years, lightweight scooters equipped with fairings resembling a small car body without doors have become more common in urban environments. Read more…
Over time, interest in velomobiles — this environmentally friendly and health-beneficial mode of transport — has waned and flared up anew, but it never completely fades away. Its fans believe that since the invention of the self-propelled cart by I.P. Kulibin, this pedal-powered vehicle has received its greatest development in the last 30 years: many Read more…
Have you ever wondered what it would be like to build a real Formula 1 racing car with your own hands? No, not just put a spoiler on a Zhiguli, but make a car that feels and behaves like an F1 on the track. One stubborn enthusiast took on exactly this kind of adventure, and Read more…
We have already talked about agricultural machinery that used an electric drill as an engine: mowers – rotary and with a cutting knife (see No. 9 for 1980 and No. 2 for 1981), a plow with electric traction (see No. 9 for 1981). Now we offer a new design on the same base – a Read more…
