The surface will remain perfect, if the wrong nail at nastilke a parquet or parquet boards remove with a hammer glued to it with glue of type “Moment” leather lining.
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ACCORDING TO THE PRINCIPLE OF COMMUNICATING VESSELS
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WEIGHTLESSNESS… IN THE CLASS
The phenomenon of weightlessness allow you to demonstrate on a normal school lesson original instrument, developed at the physics Department of the Khabarovsk pedagogical Institute, the...
