Biogas. Used in Ancient China, and then millennia later, once again “open” as “non-traditional, environmentally friendly energy source of the XXI century”, it attracts a growing attention in our country. The evidence may, in particular, to serve the steady increase in biogas-related publications. Including in the pages of “Modeller-designer” (see for example, № 1’87, 5’88). Confirmation of steady growth in popularity, as well as the immensity of the topic of technical solutions for the production and practical use of “valuable gaseous product vyrobni (i.e., occurring without oxygen) fermentation (re-Pravaya) of the organic substances, previously falling under the category of worthless garbage”, and it is this article.
The second bread is often referred to as potatoes, thereby emphasizing the critical importance of this culture. But the complexity of cultivation, especially in individual sites, it is far not on last place. Especially if all the work done here the old fashioned way, without any mechanization. To make the gardener’s life is designed by me designed the device, which simultaneously performs two functions: tracer and planters. Seeing the art project at work, neighbors one and all, longed to have the same (boost, by the way, almost three times the productivity in the trace-landing) or equivalent for personal use. Only here to satisfy that request is not possible: no now I have neither the time nor the appropriate materials. But there are sketches in which (see Fig.) anyone can personally to make this accurate (and the main thing — quite efficient) a copy of any “mechanical wizard”.
It would seem that the screen has gone forever from our life. Really, where now you see her —is amongst the theatrical props. And whether it is necessary in a modern apartment? It turns out — the need for it arises today. For example, in one malogabaritki the screen can be separated, for example, the bed of a sick or elderly person, a sleeping place of a child. In addition, it is now customary to organize housing according to the functional areas and its role here can play a screen. Furthermore, a beautifully executed, it becomes a winning decorative element of the interior.
Among the ills that await center agriculture, varroa — it is far not on last place. This is called invasive disease mite that in all stages of development a parasite on the body of worker bees, Queens and drones, and brood.
Write your magazine since 1978 and I find it very interesting and useful. Responding to the call of the editors to be not only readers, but also active authors, decided to write to you and about your experience.
Fireplaces are among the oldest heating equipment used for heating homes. Archaeological excavations indicate that the outdoor fireplace with a fume collection device used by people in 820 g. the Tradition to celebrate the New year in a country house may not be new, but is becoming more popular. Blizzard already piled up around a solid snow, and the frost painted the Windows with their mysterious floral patterns and inside, warm and cozy. And, of course, the Christmas mood special, if the house has a fireplace. Fireplace is now not uncommon: many companies offer a variety of design, even all kinds of electric simulate. But how can be compared with them even the most simple, do not have any known heating device, made with their own hands.
I read your magazine for many years: love. “Club home of the masters” — the “Tips…”, and numerous articles on the Economics — I can be very useful: apply several per year plus “old”. The remaining headings are just a pleasure to read. I want to offer simple fabrication technology needed things for the house, which is quite universal.
Engraving machine is designed for deep drawing of inscriptions and drawings on metal or plastic. In the machine used flexible shaft with collet BorderStyle from the medical drill. The drive from the electric motor KD-30 UCH power of 60 watts (electric typewriter). The rotation of the motor shaft at a speed of 2700 rpm allows you to do without a reducer.