One of the most fragile vessels household is considered to be a thermos. To protect its fragile glass bulb from damage and at the same time improve thermal insulation can, poured into the gap between the housing and the vial is foam chips. A. SKIDAN, Stavropol
Recommend to read
ADDING MACHINE FOR “KIDS”
Now, not only in family but also in kindergartens of children of five, six, and even earlier beginning to see the first difficulties addition and subtraction within the initial two or...
THE OLD WIZARD GYPSUM
Lathe in a home workshop is not a luxury but a primary necessity: the fact of the matter is necessary to produce parts that are in the geometry are called solids of revolution. But is...
