CUTS FRICTION

CUTS FRICTIONMany probably had to watch as the metal is heated during processing it on an emery wheel. The phenomenon is harmful: heating “releases” hardened metal. Is it possible to turn it to their advantage? Well, for example, to cut metal? For the experimental verification of the idea took only an hour and a half I’ve ground off the teeth from an old circular saw blade and secured the tool (smooth disc) is grinding in elektrotochilo.

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BACK TO THE JIGSAW…

This device allows you to consistently perform those operations which are performed simultaneously jigsaws, tension and clamp the blade. It is especially difficult to learn this kids — those who are just starting to learn this tool. The essence of the device in the following. On that machine, the jigsaw is pivotally secured the strap Read more…

“PYGMY”, “SIREN”, “TRITON” MADE IN THE USSR

In 1921 – 1939 in Leningrad acted Special technical Bureau for military inventions (Sptecbureau), it was headed by engineer V. I. Bekauri. In 1934 in a 1st division Sptecbureau was formed by a group of dedicated submarines. Her first project embodied in the metal, was the midget submarine APSS (aerobody self-propelled projectile), representing odnostolpnoy the boat-the torpedo with a displacement of 8.5 tons. APSS was controlled by radio (VHF and LW) during visual tracking of a plane or ship. There was a possibility and manual control.

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KENNEL-CLAMSHELL

KENNEL-FOLDINGThe book and movie “White BIM — Black ear” stirred in the souls of so many — children and adults — feelings of love and care to four-legged friends, especially dogs. Has become a mass phenomenon to keep at home Terriers, dogs, collies, poodles, great Danes, spaniels of all breeds not listed, and nothing about the breed and say nothing. The Newspapers even had a discussion — and not to include dogs in zhekovskogo design book for the payment of utility costs on them.

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WITH THE RUBBER MOTOR AND WITHOUT

WITH THE RUBBER MOTOR AND WITHOUTSchematic model of the airframe and the aircraft, as you know, started flying much earlier than their full-size prototypes. Paving the real aircraft’s path in the sky, they are now helping novice modelers to do their first steps in small aircraft. It is a pity that the modern “schematicity” do not differ from those that did even our grandparents: all of the same pine strips, aluminum wire, model aircraft rubber, a little tissue paper, yarn and glue. No new materials, no advanced design and engineering techniques.

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… WILL UNBALANCE

The quality of mortar depends largely on the quality of sand: it is necessary to sift carefully to avoid patches of clay, coarse particles, stones. To facilitate this work will help here’s a simple mechanization. To the sieve, suspended by springs, is attached to the electric motor, the shaft is mounted an eccentric weight: when Read more…

HYDRAULIC… CLASS

HYDRAULIC.Imagine you are in class technical schools. Class is in session. Lecturer for the Department sets the course, and the students, as expected, sitting at desks and listening attentively. But here ends the theoretical part, and is unusual in that the teacher, instead of inviting listeners to go to the shop or the lab, asking them to stand in the aisles. Then presses the button on the remote, and the tables as the team descends to the level of the seats. Revved the motor… and rows of tables slowly go under the chair! Fifteen minutes — and the room is free for practice sessions.

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LAMPS? IT’S EASY!

LAMPS? IT'S EASY!Many household items is easy to do with their hands. This furniture, and fixtures for kitchen and bathroom, and original details of the interior hallways and lobbies. No exception and lighting. Actuated even at home, they will look no worse than the serial favorably differing from the last by its originality. In this collection we offer you two easy to manufacture of the lamp, which can be made from readily available materials.

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IL-18

IL-18Four-passenger aircraft Il-18 was designed at OKB Ilyushin in 1956 4 July 1957 the prototype it with TVD NK-4 first took to the sky. It was designed to carry 75 passengers. In October of the same year Moscow plant № 30 was built the first production Il-18 for 89. In March 1958 completed factory and in August of the same year joint tests in NII VVS. In September, the Il-18A was exhibited at the world exhibition in Brussels, where he received a Gold medal. In the same month, the airliner has successfully completed the state testing.

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