
Shovel — ancient as the world, the instruments of labor. The design of it worked for centuries, and new, it would seem, not to invent. However, enthusiasts no-no and suggest something: the shape of the blade will change, then the stem, then attach the extra handle. Here’s one of those pens. Bolted to the big shovels shovel, it makes the job less tiring, and hence more productive.
Recommend to read
INSTEAD OF SPECIAL — ORDINARY
Cast in many industrial products have long been used mortgages (anchor) bolts with special heads, such that not only pull, but rotate can't. With the advent of high strength composite...
SKIS AND CATERPILLAR
A bit of history. I'm 48 years old. Twenty years ago with his younger brother built a sled "Idea-2" — material about him was published in the "Modeller-designer" №11 for the year 1991....