The adoption in December 1957 adopted the first option anti-aircraft missile system s-75 allowed her the lead developers of KB-1 A. A. Raspletin and OKB-2 PD Grushin to start the creation of air defense systems long range. By that time, similar developments were enough American “Bomark” English “Thunderbird”, the Soviet “Dal” the New system received the designation C-200, and a government decree authorizing its development was signed on 4 June 1958.
If you want to align a dent in the soft metal or use a hammer in a similar situation where he can hurt the surface of the material, — wear it “soften” a shirt of leather or thick rubber: from his blows will not remain unwanted residue.
Drawers in modern furniture always attract children’s attention. The result can wait no longer — the contents is on the floor. If handle is removable to make, don’t have to waste time establishing order. The device is simple to manufacture. Each handle is fixed in the slots of the metal plates fixed on the front Read more…
Any risks or scale deposited on metal or plastic surfaces of objects, will be seen more clearly if they are first covered with paint, and then wipe: deepening will save the leftover paint and would like printed.
In this competition almost everything was as really big car races: clearly marked and numbered paths, a huge inscription “Start” and “Finish” bright lights, signal lights, gambling, overlapping the voice of the broadcaster the cheers of the fans, overtaking each other swift cars. Still, the racing was unusual. They were not on the racetrack, and in the great hall of one of Omsk schools, and even the largest of launched cars easily fit in the glove box of the usual “Zaporozhets”. As for the racers, most of them have not had time to get out of the pioneer age, and some even from October.
The modelers are well aware, how difficult it is to make a model submarine. A lot of time is spent on installation and electronic equipment, debugging it, setting up steering mechanisms, so that the boat promptly sank and floated. And a disappointment for the team and shipbuilder, when she for some reason goes under the water and no longer appears. Then it is looking for divers and even divers. And not always successfully.
Often aluminum wire suddenly breaks off, so even in the most remote places, leaving a short tail, what about twisting can not be considered. In these cases, rescue is simple, but effective way. You need the same wire is wound on a nail, whose diameter is slightly smaller than that of the chip, a few Read more…
I saw in the hospital, as the nurse deftly fastened on me the bandage from the bandage: as usual, tying the cut end of the tape, and using some staples. Considered and marveled at the simplicity and wit of its devices. And when the house had long to use elastic bandage — remembered a paperclip Read more…
In the sixth issue of our magazine in 1974 we told about the device “Pulse” for the control of knowledge of students. Practice operating the machine created by the participants NTTM Donetsk Polytechnic Institute, as well as the feedback from readers has convinced authors of the need to improve the design.
Graceful and swift motorboat is an excellent educational model for aspiring shipbuilders. Work on bliss allows you to develop basic skills that will be required in the manufacture of sports cars of high class. With these boats, if they do, you can arrange competitions; it is only necessary to equip them with outboard electromotorically and to provide a place for mounting a battery from a pocket lantern.