SMALL SPOOL, BUT PRECIOUS!

SMALL SPOOL, BUT PRECIOUS!To find a suitable engine for snowmobiles — the task is far from simple. Series motors in many aspects (in particular, power density) does not satisfy the Amateur designers. This makes certain enthusiasts to elect quite difficult, but the right way is to create motors own designs, using components and parts of serial.

“SOFT” AND “MANUAL” BIKE

With age the skeletal system, particularly the spine, is exposed to specific diseases. Begin to affect migrated younger overload, sports and work injuries. But at the same time and the habit of walking and by bike turns into a necessity. Thank you as with minimal cost to improve a simple road bike, making it more comfortable and “softer”. And I think I have successfully solved the problem of depreciation.

BONE — IN!

The configuration and structure of many fruit seeds and nuts are so beautiful that they are often used for making various kinds of jewelry and craft projects. And for clothes of coarse fabric, a cloth, knitted products from them you can make some decorative buttons. Bones, the shell is carefully polished and coated with lacquer Read more…

COMBINATION LOCK

COMBINATION LOCKAbout code locks wrote more than once. However, most of them are difficult to repeat. Design suggested by our Bulgarian friends (the journal “Radio Television Electronics”), devoid of this shortcoming. For opening this lock simply insert the key and complete the circuit with the resistor R1 a certain value (it is mounted in the housing of the key). If the resistance will be different from that specified on the schematic, the relay does not work and the lock will not unlock.

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THE GERMAN “FOX” IN THE US ARMY

GERMAN At the end of the 1960s, the army command of Germany felt it necessary to replace the long-standing armed Bundeswehr tracked armoured personnel carriers M 113 American production and the French “Gocci”. It was assumed for this purpose to develop a new wheeled armored vehicle with a carrying capacity of two tons, besides floating.

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CAN AND CONE

The one who often have to use a vise knows that the most difficult thing is to hold them a wedge-shaped or cone detail: when processing it loosened and slips out. However, if you apply a semi-cylindrical auxiliary plate, the problem will be solved: surface it is firmly pressed against the cheek of the wedge Read more…