Lightweight and durable it turns out tuesok of birch solid “pipes”, accurately taken with an older birch deck. It is good to walk with him in the forest for berries and mushrooms. However, forest products fall out of sync, and I want to collect both. Not to blame everything in one pile, make a partition, as shown in the figure. It can be foldable and even a two-story, with the intermediate disc spacer.
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In recent years, and became noticeable interference in a household outlet, requiring protection home electronic equipment TVs, home audio, computers. These impairments lead to "tearing"...
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PROFILE "NACA-6409". Developed in the early 30-ies in the aerodynamic laboratory of the NAC (USA) for lifting aircraft-biplanes. This profile can be recommended as models of gliders...
