For many years engaged in bookbinding business. Stapling the sheet sets at the root, not sew them, string, inserting in the cuts the block with a depth of 3 to 4 mm sturdy thread in the shown sequence. Then coat the lace with glue— everything works faster and stronger.
O. EVDOKIMOV, Saint-Petersburg
Recommend to read
TRUST CALCULATION COMPUTER
With the calculation of the resonant circuits (filters) have to face almost every radio Amateur. It is proposed to sub-contract the performance of this work a personal computer, using...
KAMOV Ka-15M
The first experimental coaxial helicopter construction.And.Kamov, who headed at that time, the Bureau of new technology of TSAGI, took to the air in 1947. In 1948 N. And.Kamov continued...
