It is convenient to create a temporary memo — whether it is preparing the card for your file, or just notes about the latest Affairs in the coming days, or envelopes with letters awaiting answer: they are placed between the turns of the springs (preferably of large diameter). Ensure that the spring does not ride, attach the ends of tin or cardboard cheeks.
Recommend to read
TWO PISTONS IN ONE CYLINDER
Our magazine has repeatedly written about the works of children's technical club at HCS Institute of inorganic materials, which for many years was headed by engineer A. S. Abramov. Here...
TRANSPORT SIBERIAN HINTERLAND
"I live in a remote Siberian village, which last year was 370 years. Near the river Angara. This is the Central district of Krasnoyarsk region, where winters with strong frosts and heavy...
