The history of the MiG-15 began after the Soviet trade representatives in 1946, Britain was able to purchase from the company a Rolls-Royce turbojet engine the most advanced of its time Derwent 5 with a thrust of 1,590 kg, Nene I with a thrust of 2040 kg and Nene II with traction 2270 kg. In the USSR, these engines received the designation RD-500, RD-45 and RD-45F, respectively. After that, it became possible to create a fighter with a flight speed of about 1000 km/h and a ceiling in excess of 13 000 m.
A ROPE AND A STICK
Legendary Nasreddin duped the Emir, saying that the most effective torture clenching of the head using a rope loop and a stick. And this technique is really effective… when gluing wood frames. For each of the angles, pounces on the rope loop are then connected in the center, where the final tightness of them is Read more…
ELECTROSCOPE WITH INDICATION OF THE SIGN
The well-known school electroscope, which demonstrate the phenomena of electrostatics, determines only the presence of electrostatic charge. What is it, positive or negative, we can only guess. This shortage is deprived of the device designed for young hams syut Nadvirna town, Ivano-Frankivsk region. It not only determines the sign of the charge, but also its approximate size.THE GYRO ON A ROPE
Model autogyro designed and built in the laboratory of the Aero modeling club of young technicians of the Siberian branch of the USSR. The author is a graduate of the class of technical physics and mathematics school Ilya Skiba. The model is made in Cordova. In this case adjusting it is easier than Svobodnaya. The design of the autogyro is quite simple. The fuselage, landing gear, empennage, engine mountings — as a conventional cord models. A three-bladed propeller creates lift, rotating from the incoming air flow, that is, using the phenomenon of autorotation. However, the number of blades may be three, four or more.
HANGING BOOKCASE
Decoration for any hallway or hall will be suspended shelves, which is easy to manufacture from a few shelves of any size, nylon cord and aluminum tubes of small cross section. Shelves material — particleboard or plywood with four holes in the corners. Threaded through the cord forms a loop, which is passed the tube, Read more…
CIRCULAR SAW “ON THE CONTRARY”
I’m a subscriber “Modeller-designer” already since 1972. Much of that time has changed, but the content of the magazine, I (and not only me) are quite satisfied. Let increased its subscription price (which is of course not pleased, but not scared — I understand the difficulties of the editors), I’ll write a journal, yet it will exist. Not going to list those topics in it that interest me the most is all that can be done in a home workshop, ranging from simple stools to, for example, motoriety. I also do many things with their hands (friends call me by this “local Kulibin”).ELECTROCUTING TO BE!
Numerous experiments to create a map with the electric drive until now led to the emergence of machines, its high-speed qualities can become a training, not racing. After analyzing design flaws, we tried to create electrocat (Fig. 1). able to become a competitor to the traditional internal combustion engine.SCREW-NAIL
This combination is consistent with the essence of modernization, which want to offer such a famous fixture as a screw. It is clear to everyone that it holds better than a nail, but it requires more effort and time for screwing. If it is to drive with a hammer, the material is crushed, it does Read more…
COMFORTABLE AND BEAUTIFUL
Now a for additional lighting over the kitchen counters satisfied with the lamp, hanging it is usually to the bottom of the shelves. However, the fluorescent lamp with fixture suspension is not really a look, so from the front cover strap-screen. But the bar itself, it is possible to mask, turning it in this shelf Read more…
VICTORY DAY 2014!
May 9, 2014 ex-USSR countries celebrate the 69th anniversary of the Victory in the great Patriotic war of 1941-1945. May 9 special the occasion is and the joy of victory and the pain of the millions who died. It is a holiday with tears in the eyes… With The Victory!










