A screw or bolt connection details are often attenuated vibrations. Offer when assembling sprinkle the threaded surfaces tin lead IPE sawdust to screwing it does not hurt (thanks to the softness of the metal) but the weakening of the host prevents and the connection will be more reliable.
V. GOLOVASHIN, Rybnoe, Ryazan region.
Recommend to read
MINI-CASE AT THERMOMETER
Mercury thermometer, as we know the fragile and the contained mercury is also very dangerous. So if there is no standard paper sheath for it that will help out a makeshift rubber tip....
IN KINDERGARTEN — ELECTRIC CAR
This little car (Fig. 1) I did back in 1972, and it is already my second son, Sasha. He was only three years, but he leads the electric car is almost like a real chauffeur. The car...
