
A simple “opener” for metal cans with lacquer or varnish can be done in just a minute from block of wood and two nails.
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Recently we met with a model glider class Ä1. In the design of its supporting planes, and stabilizer are widely used Styrofoam, which greatly simplifies the manufacturing technology was...
ACCORDING TO THE PRINCIPLE OF COMMUNICATING VESSELS
...it is possible to make a device for determining the marks in the construction of garden buildings. For this you will need a long hose with transparent bits filled with water.