Of course, it is not a safe: it does not need to be built into the wall and the spot disguised by hanging a painting, as often shown in films and what becomes fashionable in the homes of prosperous oligarchs. On the contrary: the proposed small chest is meant to be displayed, so it has Read more…
…The silence of a sunny spring morning was shattered by the sharp clatter of an engine. A peasant digging his garden with a shovel straightened up and looked over the fence at the neighbor’s plot: what was that noise at the old Ilyichevs’? He saw a small two-wheeled machine emerge from behind the outbuilding onto Read more…
A motorcycle and a car are different machines. First and foremost, in terms of comfort. But can the advantages of two-wheeled transport be combined with the convenience of a passenger car? It turns out they can. Such two-wheeled machines—autorollers or motocars—are sometimes seen on the streets. We suggest you build one of these designs yourself. Read more…
A roof over one’s head is needed by a four-legged friend who guards your home too. It doesn’t have to be a palace, but shelter from the weather is essential for a dog. Building a kennel is within reach of any owner, and it doesn’t require special skill, tools, or materials—just what’s usually on hand: Read more…
“Open Sesame” — with these words, the resourceful and brave Ali Baba opened the magic door to the cave with treasures. Let’s imagine that Ali Baba is solving a more difficult task — trying to open the door to another cave, the entrance to which is blocked by a magic barrel. It can rotate around Read more…
In the household there is occasionally a need for longitudinal sawing of long boards into beams or battens, trimming chipboard (particle board) to size, or performing similar operations with other comparable building or furniture materials. Anyone who has done such work with a hand saw knows how tedious and laborious it is, especially when several Read more…
This lock is suitable for a garage door-gate or even a garage, whether from inside or outside. It is sturdy because it is massive and has no shackle into which a burglar can insert a crowbar (against which, as is known, there is no defense). In principle it is similar to the design already described Read more…
This device can quickly and accurately measure, for example, the temperature of a human body, water, and air. An electronic thermometer is needed by agricultural workers to determine the temperature of grain, potatoes, and soil, and by medical workers. The thermometer consists of five main units: a temperature-to-frequency converter, a rectangular pulse generator, a pulse Read more…
The automation device I designed is intended for farmers and owners of dachas with an autonomous water supply system whose key elements are a water source (river, lake, well or borehole), an electric pump and a pressure tank. Unlike similar devices, this one not only performs the main function—controlling the electric pump—but also handles security Read more…
Livestock productivity depends not least on the temperature of the water that animals drink. Warm water is also required for farm needs. That’s why it’s so important to control its heating at any time of the year. This can be entrusted to a simple automatic device. By the way, it will also take care of Read more…
