Modelist-KONSTRUKTOR No. 4, 2012.
IN THE ROOM:
Public design Bureau
V. Barinov. FAMILY MINI BIKE (2)
Small-scale mechanization
E. Pedriks. PUSHPULL IN THE GARDEN (7)
Modelist-KONSTRUKTOR No. 4, 2012.
IN THE ROOM:
Public design Bureau
V. Barinov. FAMILY MINI BIKE (2)
Small-scale mechanization
E. Pedriks. PUSHPULL IN THE GARDEN (7)
In the early XIX century the French scientist Augustin Jean Fresnel has created an unusual lens, which are not brushed solid piece of glass with a spherical surface, and a set of individual adjacent to each other concentric rings of small thickness, having a cross-sectional shape of the prisms of the special profile. This he achieved small thickness and light weight lenses. Fresnel lens in the past, have found application mainly in large lighting fixtures type marine beacons and today is actively used, for example, in projectors, in viewfinders of cameras and flashbulbs. Small thickness of such a lens allows you to release them in the form of plastic transparent rulers bookmarks, which are usually used by people with low vision read small text.
Every day we use a huge amount of things and have almost ceased to notice them. But it turns out in the production of minor things at first glance hides a lot of interesting and informative. Entertainment “Conveyor MK” reveals the secrets of making the most ordinary things at first glance. Tonight, the FLOORS are of hard WOOD.
Every day we use a huge amount of things and have almost ceased to notice them. But it turns out in the production of minor things at first glance hides a lot of interesting and informative. Entertainment “Conveyor MK” reveals the secrets of making the most ordinary things at first glance. Tonight, the RECORDERS.
Not so often, unfortunately, in the magazine there are descriptions of the improvised structures that exceed the current level of production of the Russian, and especially Western technology. And this is understandable: after all, do these Amateur machines, usually in a shed or garage where all the equipment consists of a drill and a welding machine.
But the Rover from the village Sermone, in Bashkortostan, made by a Hadith Shagalievich by Segalini and his sons, in my opinion, in many respects superior to the similar machines of domestic auto tractography.
Every day we use a huge amount of things and have almost ceased to notice them. But it turns out in the production of minor things at first glance hides a lot of interesting and informative. Entertainment “Conveyor MK” reveals the secrets of making the most ordinary things at first glance. Tonight, the ELECTROPLATED COATING.
The ventilation needs of many suburban buildings. Without it, mold in houses and sheds, get wet cellars and basements, and only use luftblasen, where there is no fan, to put it mildly, uncomfortable.
Of course, to equip the toilet or cellar electric supply or exhaust fan is not difficult, however, many summer cottages are not always electrified. But the fan that I want to tell the readers, electricity is not required – it rotates… rotor wind turbine.
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 self-hardening compositions that bolt you can “lay” in the body of the finished product (plastic or metal) and making it pre-nest, and then simonaityte.
Sometimes the house master when performing any repair or maintenance work is to explore the dark, and even hard-to-reach place that will not push a normal portable lamp. In this case, helps out a small candle and even ordinary match, but often the conditions do not allow the use of open flames: fire or by circumstances, or because of the possibility to ruin something that needs to be seen.
Every day we use a huge amount of things and have almost ceased to notice them. But it turns out in the production of minor things at first glance hides a lot of interesting and informative. Entertainment “Conveyor MK” reveals the secrets of making the most ordinary things at first glance. Tonight, the SEMI.