Look at ordinary lake that we water the flower beds or the beds in the dry season: its construction, once born, has not changed. But whether so it is perfect that does not require improvement? Of course not. Here is one of the possible upgrades. Typically, a sprinkler head is within the level of the upper handle. Of metal or rubber tubing to make the extension spacer and you instantly feel how much easier will work a “telescopic” lake: without much effort you can reach the opposite, COA the garden or greenhouse.
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THE REBIRTH OF THE “HARD” ROCKET PLANE
First the model of similar schemes appeared in the all-Union competition in 1982. With them were athletes from Moscow. But at the time of competition for soft raketoplana the type of...
