In the practice of the house master there is often a need in a small brush for cleaning small parts, corrugated surfaces, plates or printed circuit boards. Very convenient for this purpose, a regular toothbrush. It is only necessary to change (as shown in rience the configuration of its handles, heating over the flame of a gas stove or in boiling water. E. SAWICKI, g Korosten, Zhytomyr region.
Recommend to read
CUTS THE HEAT…
In modern modeling foams of various grades are used. This is understandable: the material has very little density, and its strength is comparable with some types of wood. But in the...
TURTLE, LATE FOR WAR
1942 the British General staff attended to the question: "How should a heavy "assault tank", able without harm to themselves to act at the head of the offensive orders troops?" At that...
