On the fronts of world war II in the fighting military units along with various armored vehicles involved and light tanks. It is known to our T-26, T-60, T-70, the American M3 and M5, the German PzKpfw I and PzKpfw II. However, the commanders of the opposing sides after some time came to a disappointing conclusion, considering them unfit for action due to relatively weak weapons, and insufficient armor protection. Therefore, in 1943 the production of light tanks was stopped in all countries except the USA, where the M5 was produced in 1944.
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Under the terms of the competition model rockets must stay in the air for Some time, and it makes rocketmodeler to look for different Methods of forced landing. Very interesting designed and a mug of rocket and space modeling the pioneers of the town of Krasnozavodsk. It allows you to limit the time of flight depending on the conditions of the competition.
In the 1970 – 1980s, Soviet designers created the powerful jet system of volley fire MLRS, the superiority of which was recognized by military professionals worldwide. Under their influence, many States were later developed by modern samples of this powerful weapon.
Historians say that the sail appeared on land about four thousand years ago! Fiction? No – there is documentary evidence. In 1953 the Italian archaeological expedition at the excavations of the temple of Ptolemy near the town of Medinet MADI discovered the remains of the ancient land of the sailing ship. Designed and manufactured it was under the leadership of the Egyptian Pharaoh Amenemhet III (1849 – 1801 BC). It was a rook, which floated on the Nile at first, and then mounted on four wooden wheels. Two four-meter mast stretched colored sails. The inscription found in the desert of basalt polished slab read: “Pharaoh Amenemhet III traveled from here across the desert to Medinet in a sailing boat driven by the wind.”
In one of the winters, according to the Central television, only in Ekaterinburg more than 50,000 residents were injured when falling during icy conditions. And how many car accidents occur due to ice on the roads? However, the wheels of cars for a long time, metal spikes. Why not do something like that in heels?
A distinctive feature of this model of rocket plane is turning the wing. It is set along the fuselage, which eliminates any possibility of the appearance of the spiral during takeoff.
The process of establishing electronic circuits the most exciting and interesting, but also the longest, sometimes bringing a lot of grief for Amateurs due to the lack of reliable power supply. After all, the battery or the battery do not serve indefinitely — they are discharged. Changes frequently and the line voltage. And each scheme is designed for a specific voltage. Changing it degrades the operation of the entire electronic device.
A kind of triumphant decade, one of his model rockets notes flying club syut town of Elektrostal, in the Moscow region. Created rakotomalala and model-copy geophysical rocket-5V continuously improved, they successfully participated and won at the most prestigious competitions and Championships in the S7 category.
I want to share the experience of creating bugarcic (for your girlfriend of course). Thought of it as a wedding gift to my fiancee, because I wanted to make something beautiful, unique, comfortable, and, of course, quickly, as pre-wedding chores do not leave time.
Without pretending to any special built in circuitry to use a more graceful version of an intercom that can be used as an intercom system in the private house or in the country. The design is simple and available for self-production, even a novice radio enthusiast. In standby mode the device does not consume battery power, but is always ready to work: just touch the button and — please say! Working on the second set you will certainly hear.