Line on writing or desktop has “property” in the right time to get lost in the pile of papers, drawings, details. Fasten to the edge of the table, two cloves, and even better — screw two small screws with round head (not clung to); in the line also make two cut so that they easily included screws. Now the ruler will always literally at hand and never lost.
Recommend to read
“RAZLAGALSA” BATTERY
On the recommendation of the manufacturer to eliminate the memory effect of Nickel-cadmium batteries (NiCd) should clear their element to 0.4 V. For the implementation of the above...
ERASER-“ELECTRONIC”
Almost every family today is an Amateur digital camera, from simple "soap box", no special adjustments (so to the uninitiated, the sellers say that "the exposure is set...
