Another art project from a five-liter bottles — the mouthpiece, which are used by the tourists. You only need to cut off the bottle bottom and the mouthpiece is ready. If “communication” it is alternately applied to the lips (the transmission), then to the ear (receiving), and the range of communication on the water with a pair of such horns, it turns out considerable — under favorable conditions up to a kilometer.
Recommend to read
WINCH: PLOWMAN, ROOT PULLER, AND… MINER
«Hitch... a winch» — under this headline, material about my developed electric plowing system was published in "Modelist-Konstruktor" No. 8, 1995. A far from minor role in it is assigned...
MULTILATERAL HACKSAW
Now fashion wooden buttons and decorations that require a large number of blanks-kruglyashi. Cut them from a wooden rod very easily with a hacksaw on metal, if you fix it is not one...