I-15bis

I-15bisThe biplane I-15 upper wing type “Chaika” was a further development of fighter I-5. The first flight of an aircraft equipped with the engine SGR-1820 F-Z of the company “Wright-Cyclone”, performed by V. Chkalov in 1934, First production vehicles were completed with 480-horsepower engine, M-22, and since 1937 — the M-25 takeoff power 630 HP, the Aircraft was constantly improved. His first option was the I-15bis. different upper wing, located on the scheme parasol.

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THE DESTROYER “DARING”

THE DESTROYER By the beginning of world war II, Soviet destroyers and leaders in its combat performance characteristics superior to the best ships of the same class built in other countries. Destroyers types of “Angry” and “Watchdog” and leader of the “Leningrad” was armed with 130-mm guns, three -, and four torpedo tubes, and twin anti-aircraft machine-guns had Paravan guardians carried on Board depth charges and mines boom. Power of artillery and volley firing range, these ships had a significant advantage over the latest at the time of the German destroyers series and 2 American style “Bristol”.

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PHONE ON YOUR FINGER

PHONE FINGERNokia FIT – a concept phone that can be worn on the finger. Made from soft silicone and flexible rubber, the phone is fully waterproof and supports voice communication and SMS. You can take it with you to the pool and enjoy the fun even if you are expecting an important call.

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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…