
Original and practical sun glasses can be done by hand, based on the normal rim (even better if it is old — work style of “retro”), and instead of glass to paste into it fine-meshed plastic or nylon mesh chumnogo color.
P. IVANOV, Stupino, Moscow region
Recommend to read
THE SOLENOID
So, you are already familiar with the electromagnet, knows how to work the buzzer and electric bell (see "M-K" No. 8 this year). But there is a large group of Electromechanical devices,...
RACING MODEL — THE CHAMPION OF EUROPE
In the early 70-ies before the Soviet athletes-automodellista was a challenge: dvuhsotmetrovy to exceed the threshold speed in the class of models 2.5 cm3. These days, the speed has...