The editors have received many letters on the publication of “Biogas: and warms, and cooks” (see “M-K” № 1, 1987), based on the materials of the Romanian journal “Technium”. Of readers was attracted by the subject and documented in the design. Many are interested in the details of the devices bostanova, asking how to make the individual nodes. Further clarification and recommendations for possible solutions to the structural elements gives our consultant engineer P. Zach.
For his bike, I chose a folding bike “Desna-2” In model-849 with smaller wheels (20 X 1.75). To install it on the motor, did some fine-tuning.
The laboratory experimental machines Orlowski city Palace of pioneers named after Yuri Gagarin a lot of interesting and original works. At the regional exhibitions NTTM they attract the attention of visitors of all ages. And no wonder! The search range of the young designers wide: training glider and walking robot, a flying car and microtracker. With every new car the guys are in the way of true researchers: outlining the purpose, carefully studying the existing experience, then, given their own capabilities, define the technical requirements to future design and finally design and build it. So was born a twin recumbent LEM-05 (laboratory of experimental machines, 5-I model), the creation of the device, which says the head of the laboratory of engineer V. I. Borodec.
How much fun gives the children the winter snow. Technical Arsenal of this kind of leisure is increasing every year: the sled wide variety of designs, snow-cats, snowmobiles and many others. With the arrival of spring comes the turn of wheeled transport: bicycles, scooters, skateboards. Those who are fond of snow, making myself a summer toboggan — a simple wooden cart on wheels-bearings. With a roar they rush downhill on asphalt tracks. And well, if this alignment is away from the city streets, bustling sidewalk, where the “rider” on his own, devoid of brakes the projectile is not exposed to danger. But better not to hope in case, and try to make it fun safe and useful: to make a simple single truck with steering and brakes, comfortable and safe route and organize sports competitions.
In Latin language the word “cultivation” means “handling”, “cultivation”. If to explain in more detail, is the process of loosening the previously treated soil with simultaneous cutting of the root system of weeds. But cultivation is not only important for weed control. Tillage improves air and water regimes of the soil, which in turn enhances the activity of soil Microorganisms, creates the conditions for a friendly germination of seeds of cultural plants.
“Look through with great interest your section on “Small machines”: many useful find here Amateur gardeners. I decided to share a simple tool that has served me faithfully for years is terebilo for corn cobs”.
Unremarkable externally, water tower farm “Precepts of Ilyich” Spassky district, Gorky region. One year supplies the sleep of the villagers spring water. However, coming closer, you will not hear the usual noise water pump operation — he’s not here! And although the source is considerably below the level of the top of the container, water, with only a short respite, rise up! It is not a miracle? No, just Gorky handyman, locksmith-Borsi Yiwu L. Ceranova managed to invent and test the original hydraulic installation, in which for lifting water is used… the energy of the source. We offer our readers acquainted with the principle of operation and device.
For a man, far from technical creativity, the expression “reinvent the wheel” has a negative connotation: a waste of time, repetition of already traversed. However, the designer-Amateur gives it a different meaning. He rightly believes that nobody is perfect that new technique you can even find on the beaten road, and continues to look. …Muscovite Vyacheslav Kabatov came to the editorial office with his seven year old son. They brought a bike that… Well, him.
It turns out that the bike besides one of the most ancient modes of transport: it is depicted on the recently discovered risuna Leonardo da Vinci related and 1495, that is, will soon celebrate its quincentenary.And at the same time, the bike is forever young, because with each new development it seems to be reborn. Today there are more than 20 thousand patents for a variety of venoconstriction! And the search continues. And it involves not only professional designers, but also a large army of Amateur enthusiasts and fans of pedal techniques, including readers of our magazine. The direction of this search are diverse, but among them we can highlight some General trends.
The kit tank consists of two round metal mesh laid on top of apples: the first with a mesh size of 1 mm, the second is 0.5 mm (So that the grid didn’t crash on the perimeter they opany); hardwood (oak, beech) CD-punch with holes for the passage of juice, another disk of smaller diameter (not blocked hole punch) and spacer-boss from a wooden bar, used when there is not enough stroke of the Jack.