A small group of enthusiastic scientists and engineers of the Department of theoretical mechanics of the Kursk Polytechnic Institute, working on the creation of an engine operating without fuel and electricity: they are… replace the flywheel. About these interesting looking we asked to speak to the group leader, doctor of technical Sciences, Professor Nurbay Vladimirovich Gulia, head of the Department of theoretical mechanics Institute.
Training RC model airplane. This publication is for those who have sufficiently mastered the piloting cord model airplanes and thinking about the next step — creating the RC. You can, of course, buy ready-made miniature replica of the aircraft and start its development, however, great pleasure from it is unlikely to get made with your own hands and independently adjusted and test flown the model is not interesting example. And cost is cheaper to buy will have only the remote control equipment Yes servos.
Nowadays, the drill is not uncommon. Drill a hole in the concrete wall or polished metal part having a cartridge holder with a felt circle — in such cases it is indispensable. Wooden disk glued with a cloth will help you Polish any flat item, and if between the skin and the drive to lay the foam, you can tear off the old varnish from the floor, grind the surface of complex shape.
Czechoslovakia justly called the center of Europe: at its plants at different times was created by the machines and equipment are well known throughout the world and is characterized by high reliability and original design solutions.
Karting is the most popular and accessible to young people kind of motor sport. It is also interesting that card — an object of technical creativity. In addition, to gain initial driving skills on them much easier than on cars. You can start even from the age of nine. The simplicity and low cost of raw materials enable schools, Palaces of pioneers and the young technicians ‘ stations to build as many carts as you need for simultaneous teaching of a large group of guys. Also important is the advantage that these sports cars are cheap to operate and do not require storage spacious garages.
Usually automatic device switch on and off the Christmas tree lights in leaps and bounds, without changing the brightness. But the electronic switch scheme is presented in figure — does not have this drawback. The basis of his work is based on the principle of beats that occur between the frequencies of the mains and generator. The latter is a multivibrator transistors T1, T2. It generates rectangular pulses with a frequency of (100 ± Δ) Hz (100 Hz is the fundamental frequency of the multivibrator, And the frequency of the beating, which switch lamp garland which is in the range of 0.1—8 Hz). Adjustment of the burning time of the lamps is variable resistor R6 “Smoothly” and R7 “Rough”.
My way of fastening several sheets of paper, especially with a tight cover or tab, affordable, fast and reliable, so that will help out students or students who have to apply for different papers. Invested in in half, bend the “cover” of paper pages don’t have to glue or sew. It is sufficient to enclose Read more…
Convenient storage of small tools is not only about safety and effectiveness. I think that drills, taps, needles, and other small tool is best stored upright in a plate of thick rubber. Perforations drilled or punched with a sharpened pipe, and their diameters must be smaller than the diameters of the installed items by 30 Read more…
If the rune was not polishing — no problem! With the processing of small surfaces perfectly cope conventional tube driven in rotation by microdrill. To secure the tool cartridge in probnu 3/4 of its length you should install the screw and then cut off his head. Before polishing the tube should be rubbed with the Read more…
27 August 1957 the world has heard the TASS report about the successful test in the Soviet Union the first ever multi-stage Intercontinental ballistic missile. And on September 17 of that year at the solemn meeting in the House of Unions, devoted to the 100 anniversary from the birthday of the founder of theoretical cosmonautics K. E. Tsiolkovsky, with a large presentation was made by corresponding member of the USSR Academy of Sciences S. P. Korolev. His name then did not say anything to the masses, except that the veterans recalled the newspaper line distant times of rapid development of Soviet gliding.