Externally methanol (technical alcohol) is very similar to ethyl alcohol. It has approximately the same density and coefficient of a refraction (ability to refract sunshine). Has the same smell and color. In vitro to distinguish methanol from ethanol will not make big there. In house conditions it is more difficult to make it. However there are several ways to distinguish ethyl alcohol from methyl and without the difficult equipment.

Weather on the street not always corresponds to promises of meteorologists. In spite of the fact that in the world thousands of meteorological stations work, cannot precisely count weather even modern supercomputers. And all because the atmosphere parameters defining weather easily change under the influence of any given factors.

The galaxy – the system consisting of stars, dust, gas and dark matter which is held by gravitation forces. Behind such prosy description beauty of millions of shining stars lies. Some galaxies are called in honor of constellations in which they are located, and some possess beautiful unique names.

At development of the interregional labor relations and also in personal interests, there is a need to make moving from the city to the city, other settlements, or to places where never before happened. Now there is a set of ways to determine coordinates of the necessary destination.