There are many ways to keep a ladder from slipping. The easiest “put on” her old sneakers or shoes with a rubber sole.
Recommend to read
C-6: SIMPLICITY AND RATIONALITY
Winter operation of all-terrain vehicles in the northern regions of our country places a number of specific requirements on it. So, to reduce resistance to movement, the machine must have...
THE DECISION PROMPTED GLIDER
Journal with drawings of Cordoba aerolizer who have developed a record speed, took all the guys from our club. "We will build these!" — without hesitation, they said. To dissuade the...
