
to insert the keys in the front door on a dark landing, and requires some kind of illumination. Well, when a box of matches or a lighter. This problem will not arise, if the door closer to the lock pin miniature flashlight button: fortunately now there are many suitable options fobs illuminated.
Recommend to read
TOURIST’S DREAM
Many readers, after the editorial board asked them what amateur constructions (for water, land, and air) they were interested in, sent hundreds of letters to the editorial office...
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...