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.
LENS FOR… MOBILE PHONE OR POCKET KVN
The heating battery is a necessary part of every apartment. Cast iron “bunching” of the old production and even modern variations are far from aesthetic perfection. To eliminate this drawback of the interior proposed a simple and practical design – Cabinet-screen. The front panel it has a sliding part to which the rear attached to the frame of pine slats for drying clothes. On top of the cabinets can be decorative vases and pots of heat-loving plants.
This ornamentation on almost every bed, but also will create comfort in the room, and so sleeping under the canopy – more and more quiet, since summer will protect from annoying insects such as flies or mosquitoes. Cloth frame on four turned wooden poles looks very elegant, and the manufacture is so simple that anyone can DIY. And to install a canopy can be on any existing bed, as his design not connected with her: she is Autonomous, as is easily seen by looking at the photographs.
Skilled craftsmen-lovers will take great pleasure in having made this table with folding additional counter tops. We are talking about the French magazine “System D” model in “Royal” style, which is characterized by simple lines, with curved legs and the absence of any invoices or carved decorations. Such a table is a real treasure for those who love beautiful furniture.
What the shelf life is not I had to do for the home and garden. After all, not every purchase can fit into the interior of the apartment: the shape does not like it, the size is not suitable, then the place does not fit. And with regard to beautiful hand-carved shelves, the price may not be acceptable for families with low incomes. So we have to do on their own to be able to meet all the requirements of the owner.
It will look good not only in the countryside but in a city apartment, featuring special convenience and originality of design (in addition, it is available for self-production). The fact that this easy chair has compared to other similar one is undoubtedly the winning advantage: the position of the backrest can be changed, giving it the most comfortable for you angle. Let us consider by what means this is achieved.
Currently, there are many indoor fountains (KF), designed for interior decoration and humidification of residential and industrial premises. However, the price of these lovely devices, to put it mildly, somewhat exaggerated. Therefore, in the club “Russian craftsmen” (Chelyabinsk) was developed and tested technology of the fountains available and cheap materials. The whole structure of KF is based on a decorative base, inside of which sits the water tank. At its bottom is installed on the suction cups pump. On the output nozzle of the pump mounted discharge hose (flexible tube) coming out through the holes in the cover (the sump) and stand. The return water into the tank through a fitting in the cap and the drain hose.
Affordable and easy to use automatic cameras-“soap” can make any person a photographer. The presence everywhere for the service of photographers specialized items the most famous foreign firms (it is a pity that Russian is not among them) makes it easy and relatively inexpensive within an hour or two to obtain beautiful colored glossy pictures. Camera instant shooting reduce the process of getting photos to a few seconds.
Any frame — big or small — design “strict”: makes serious demands on the butto-ness of angles and their careful execution and connection. To simplify the manufacture and to get a quality frame with less effort, the French magazine “System D” offers two simple and convenient devices, which you can do yourself: a tablet for cutting sticks or baguette and a press for bonding of the workpieces.
Sooner or later, in the drawers of your Desk, accumulates such a quantity of clippings from Newspapers, magazines, old brochures, notes that it is necessary to decide what to do with them next. There is of course, a radical method – to give it all back in and then put on the bookshelf. But this may not everywhere and not all. There are other, more simple variant: to lay down the clippings in folders with strap and remove the closed part of the Cabinet. Closed because these folders in the apartment don’t look very nice. But by putting them there, you lose these materials, which is not always desirable.