Do not you find that a bunch of keys in your pocket slizhkom became cumbersome? Solder them in pairs, and it will be much more compact and easier to use. The keys are connected to a pair of depending on the length and destination. Possible combinations can be the key to the apartment and from the mailbox; the key of the garden gate, and to give the key to the garage and from the castle at the gate.
Recommend to read
WHY IS THE BALL ROUND?
Old hunters, when there was a fraction that came out of the difficulty is quite simple: crumbled in the pan scraps of lead, covered them with heavy disk and rotated it: rolling between...
SISTER OF “SEVEN”
With the proposal of developing a new Intercontinental ballistic missile operating on liquid oxygen and kerosene, and in 1958 was made by the Council of Chief designers. While its weight...
