Not privy to his secret for a long time to turn this wooden “hedgehog” in my hands, trying to figure out how he knows and not full at all if he is so closely connected with each other all the cubes, as if glued.“HEDGEHOG”PUZZLE
Not privy to his secret for a long time to turn this wooden “hedgehog” in my hands, trying to figure out how he knows and not full at all if he is so closely connected with each other all the cubes, as if glued.


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Not so long ago was invented the elliptical leading Cycling asterisk, allowing to increase the efficiency of holotransmit, faster to scroll through “dead spots”. One time they even went on sale, but then disappeared. To produce such a star yourself is very difficult and time consuming due to its configuration and the large number of teeth.
The device allows you to monitor the status of the galvanic cells and batteries: it measures the voltage under a nominal load. Diagram of the device is a voltage divider made from resistors. Using the B1 resistors are switched in pairs: one acts as the load, and the second determines the sensitivity of the device.
The starting point of any design and experimental work, whether a solid CB or technical circle, a laboratory for students — identifying the problem, the technical problem. Based on experience WITH an CUT, try to identify the conditions that determine the success of children’s technical creative work.
The glorious pages of military Chronicles of the Soviet Army and Fleet will be reflected in the summer pioneer games and competitions the jubilee. Young modelers and designers can show their ingenuity in the preparation and technical design of these games — including water maneuvers “Lightning”. We published several examples of homemade products that are easy to force themselves yunarmeytsev “Lightning”.

Hydroplanes BRO-16 — single-seat biplane of wooden construction, designed for training and demonstration and training flights. This is the first machine of this type, established in the Lithuanian SSR under the guidance of famous designer, a veteran of the Soviet gliding of Bronica Oskinis.

The desire to create something unusual and striking, inherent, perhaps, to each of the modelers. This made sense at the time to try to find a new class of radio controlled gliders, which after years of occupation began to seem quite similar. Some time ago on paper there were projects non-motorized flying wings unusual geometry and several gliders-ducks. However, knowing that the process of creating a glider of any class more demanding than the aircraft, did not want to go on a risky experiment – flight properties of such extravagant cars were unpredictable.