Created wristwatches that do not require vision or hearing. Instead of traditional watch hands, the time is indicated by two balls – one indicating minutes (top), and one indicating hours (side). These two balls are connected with magnets of the movement. The watch is made so that even if the balls are moved when touched, they are easily returned to the correct time with a gentle shake of the wrist.
1888, the coronation of Wilhelm II, last Emperor of Germany, claim to very much, which has plunged his country into the bloodiest in the entire history of the Earth, war ended in disaster for his country and for himself. The new Emperor considered himself a great connoisseur of the fleet and even the compiled projects of warships (even if only conceptual). It is not surprising that already in the first years of the reign he completely rebuilt the organization of the naval forces, unchallenged which lasted 20 years under the auspices of the land of the generals.
Mushroom pickers, fishermen and tourists have seen many times on the narrow paths of the forests of the Moscow region a strange structure that appeared as silently and as noiselessly disappeared with a flash of shiny rims of Bicycle wheels. And over these wheels stood a pile of backpacks, bags and baskets. Told that unusual bike has three wheels, but they are located — in contrast to the well-known tricycles — not a triangle, and to each other in one line! We’ve been looking for an unusual bike and its Creator.
Once in the journal “modelist-Konstruktor” I read the article “the Farmer’s sloping field.” The air route is very much needed in the highlands. But in nature, there are many horizontal areas, overgrown shrubbery, marshy ravines, through which transportation of cargo is also very difficult. In addition, many farms have often to move cargo over short distances — for example, on farms. For this I suggest using a rope conveyor. It is much easier air road, offers the opportunity to assemble the system on their own, for example, in the workshops of the kolkhoz or sovkhoz.
There is a reliable way to check the quality of sharpening cloths or disk saws. Light a candle and hold the flame on the teeth. This should be done evenly and quickly without overheating the metal. If one of the teeth when sharpening, you missed the flame in this place will be Smoking. Mark in Read more…
Overcoming water obstacles by troops in the course of warfare is still one of the most difficult tasks of engineering support of Special importance is its start — up phase, the crossing, that is, overcoming water obstacles with the battle, when the opposite Bank defended by the enemy the Crossing ends with the capture of the vanguard or the first echelon of the advancing troops of the bridgehead, eliminating the possibility of enemy direct fire of ferrying troops.
Working in the garden or in the garden with a blunt instrument — only a waste of time and effort. And to make the shovel or hoe sharp — requires grindstone. However, I succeeded without him: just beat the cutting part with a hammer, as is done when working with a scythe. You need only Read more…
Since the profession of Aviator became popular, there was a need for a training aircraft They were needed for initial pilot training and for maintaining the necessary level of flight training of the personnel of combat units. Since the thirties of the XX century, a whole generation of Soviet pilots passed the initial training on a simple and reliable aircraft Po-2 For advanced training were used Yakovlevskaya UT-1 and UT-2. After the war, under the leadership of Alexander Yakovlev for this purpose has created the Yak-18 and Yak-11.
When carrying out installation work related to installation of structures on mortgages supporting parts of foundations, as a result of violation of technological process or as a result of its imperfections may be difficulties caused by irregularities in the supporting surfaces (local distortions, holes, etc exceeding permissible limits). Such situations often arise in the installation of industrial equipment, but such cases are not uncommon in everyday life. For example, the use of embedded items in the Foundation in the construction of different buildings on a country or a plot.
Many model airplanes-students dream to provide their own model gliders hooks for dynamic start. Designs that have already been published, quite complex for the manufacture of novice modelers.
