To control the horizontal position of the parts and elements of building structures typically use a bubble level. To as, for example, to check the position of the roof ridge or panels, the spacecraft that are set to make the level impossible! The easiest level for these cases — conventional PVC tube with a diameter of 6 mm, better transparent. Fill it with water, directing the open ends up. According to the principle of communicating vessels, the level in both the knees are set at the same height, and hence the line connecting them will always be strictly horizontal.
I. KONOPLENKO, V. Lepetykha village, Kherson region.
Recommend to read
SPLIT AND STRONG
Among the walnuts come across so strong to cope with them is possible only with a hammer; but often while the kernel itself is flattened into a pancake. If you have a bench clamp,...
WITHOUT LEAKAGE
Pumping a Bicycle tire pump regular takes often more time than similar work at the motorist. The main reason is air leakage through the connecting rubber tubing to the pump and the...
