How to be if urgently need to carry out drafting work using ink, a special ruler with a raised above the paper edge among the tools was not there! A way out of this situation is shown in figure — two or three paper clips fixed to the usual square or line, thereby eliminating the leaking of mascara under them.
Recommend to read
INSTEAD OF A SLEDGEHAMMER
For modern engineering and many other sectors of the economy it's not uncommon for such large structures, in which the Assembly or disassembly of powerful bolting already exempt from the...
FIGHTING A MIRAGE
Fighter-interceptor, the Mirage IIIC. In 1953, the French air force announced a competition to create a light supersonic fighter-interceptor. Virtually all aircraft manufacturers and...
