It will be a good helper in all cases where any surface is necessary to impart roughness. For example, to glue ceramic tiles on painted with oil paint the wall. You take a plate, fill her sparse number of nails so that their edge came from the other side, and you do not need to spend a lot of time and effort to cover the wall of the grooves providing the best coupling with the applied cement mortar.
Recommend to read
BRIGHTNESS — THE CHOICE
For lighting your desktop in many the approach is simple: that would screw me a light bulb more powerful. As a result, the "no cause" blurred vision, development of visual fatigue, drop...
EASY AND CONVENIENT
The voltage is from 1 to 12 In intervals of a single oxen allows to obtain a transformer, the circuit of which is shown in the figure. If desired, the switching is easy to implement...
