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
THE AIR IS PARTICLE BOARD
Who said that the furniture in the nursery, or, indeed, in the room of a teenager must be the same as half of adult? A cottage or summer house in the garden? Yugoslav journal...
CAR FOR TRAVELERS
Czechoslovakian Tatra-87. The speed of the first car was small, but it seemed like the drivers exciting. However, over time they got a taste of driving fast and have begun to demand from...
