During repair works of structures with steel threaded connections of the work items that have to deal with the complexity of their separation due to corrosion of the thread. These phenomena can be caused by the influence of precipitation, condensation as a result of temperature changes, as well as in cases of operation in different aggressive environments.
Electric wire is electric circuit elements, with which are connected circuit elements. At the moment there are several types of wires, each with a different scope. Any electrical cable is marked with numbers and letters, which can determine the following characteristics:
the cross – sectional area, expressed in square millimetres;
the metal from which they are made;
– insulation material;
– number of conductors;
– nominal voltage, which are designed for electrical wire.
The market active leisure has added exotic aircraft. The French offered to buyers of the kit can turn an ordinary jet database to run in the sky jetpack.
Inventor Franky Zapata (Zapata Franky) and his company, Zapata Racing (manufacturer of jetski) has introduced its new and unusual product – jet pack FlyBoard.
In the air it rises through the four water jets – two major platform spewing from under the feet of the rider, two additional — from-under hands of man.
On a country or a plot over time, accumulate debris that owners tend to burn in the fire, that is unsafe in the fire relation. Much better for these purposes to have a special stove, make that very easy.
In a conventional 200-liter barrel available method (welding, drill, chisel) have several ash-pit hole with a diameter of about 50 mm at the bottom and two pairs of the same inner side a little higher from the bottom.
A Dutch engineer has built cybercrime , and to be able to manage them-used the joystick to consoles and accelerometer disassembled “Google phone”, as well as thought of placing his wings engines with a total capacity of 2 kW.
The wings were made of fabric on a rigid frame; each weighs only a kilogram, despite the relatively large bearing area.
Their wings have gained through the sketches of Leonardo da Vinci.
IN THE ROOM:
Public design Bureau
S. Senukov. BIPLANE “GRASSHOPPER” (2)
Panorama photos (6)
Laser eye surgery is a cutting-edge area of modern ophthalmology. Achievements in the field of laser vision surgery can now once and for all solve the problem of poor vision for millions of people with various forms of refractive error. Over the last 10 years all over the world spent almost 5 million operations vision correction with the excimer laser.
IN THE ROOM:
Public design Bureau
I. Galkin. BIKE BAGS(2)
A. Matveichuk. A CARGO FOR PASSENGER CARS(4)
I’m a longtime subscriber of your magazine, use a lot of printed in it. I especially liked the article “Fire… of water”, published in “M-K” № 7, 1980. The description made the cell, and it has become a necessary tool in my workshop.
“Surgery” on the site
Approaching the long-awaited season for lovers of skiing hikes of the day off.
Nice and easy will playfully glide on skis along well-trodden paths in the Park or the suburbs, bypassing the dangerous descents or too sharp turns. However, this option is not always available, especially in Hiking cross-country and even wooded areas. Often forced to overcome risky for ski areas may lead to their breakage.
