In domestic thermos small size is screwed on top of the cap, which is often a too strong tightening the cracks or even breaks. Instead of trying to stick together, it should be replaced by a suitable diameter plastic cups.
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In order to ensure the safety of electrical equipment during sudden surges, there are special systems surge protective. They help to avoid breakage and equipment failure. ...
HE DOESN’T NEED WINGS
The history of creating our autogyro, later named DAS-2M, spans over two decades. The first flight of the DAS autogyro took place in May 1980 in an unpowered version, towed by a "Zhiguli"...
