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.
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TO NOT UNSCREW THE SCREW
To nut the connections didn't loosen during operation of the device, usually put the second (jam nut) or enclose the washer Grover. If such is not at hand or you need to fix the little...
PIPE RESONANCE
In the magazine we told about the methods of choosing the parameters of the resonant pipes ("modelist-Konstruktor" No. 9 for 1995) for highly accelerated engines. Fulfilling the wishes...
