Motorists know that if a car a long time not to use the battery terminals to prevent oxidation must be removed, and the open contact of the battery terminals to isolate. The easiest way — the usual plastic bottle caps. On the negative pin tightly put on the cap from a half-liter bottle, and on the positive — from 0.75-liter. Conclusions closed by such caps are not oxidized, and the battery is protected from accidental short circuits.
ACCURATE MARKINGS
To spend simply a circle on a plane costs nothing with the help of a compass. But what if this line should cover a cylindrical billet? For a rough layout, you can use string or a rubber ring. The marking will be more accurate if the workpiece perpendicular to lower the fluid: boundary wetting will Read more…









Agree to see ka road in the evening time the cyclist is not easy, even if the two-wheeled machine and is equipped with reflectors-reflectors. Especially fraught with danger moments braking — braking road bike is relatively small. Conclusion: non-motorized transport are needed now stop the signal.
