Film sticky tape — very convenient packaging and sealing joints material. And if operations on the gluing has to do a lot — there is a need for them to “mechanize”.
KATYUSHA BM-13
Scale model 1:25.
THE JET SYSTEM OF VOLLEY FIRE BM-13 “KATYUSHA” ON THE CHASSIS.
“Katyusha” — the informal collective name mobile rocket launchers BM-8 (82 mm) and BM-13 (132 mm). Such plants are actively used in the USSR during the Second World war.
Back in 1916. combat missile for smokeless powder (the prototype of the later missile) was invented by Ivan Platonovich grave. In 1924. he got on a missile and a charge of patent No. 122. Further work on the creation of rockets on smokeless powder continued until the great Patriotic war.
WHEEL SAILING
In the last decade, especially popular among Amateur designers use motor vehicles on light wheels with cameras-Pneumatics. The amazing maneuverability of these machines prompted the sailing enthusiasts to use the unique properties of the wheel-Pneumatics when you create year-round sailing.
This publication acquaints readers with such a vehicle.
So, get to work. I advise you to start with the most difficult — with the manufacture of the trolley.
Trolley frame is welded from thin steel tubes. That frame turned out to be symmetrical and without bias, it makes sense to build it to build a kind of slipway. In the simplest case — smooth area of the floor on which are mounted, in accordance with the dimensions of the truck front axle and rear fork controlled along with the steering column.
BUILDING THE BOAT
Despite the fact that the industry produces many different small vessels (including yachts), the number of homemade, Amateur-built, grows from year to year. They boldly experiment with various materials used in their projects are interesting technical solutions.
Applied technology construction of small vessels is the result of years of experience. But the limit to perfection does not exist, and there is always the possibility of improvement of the individual steps of a multi-faceted process, which can make the building any less time consuming, does not require high skills or cheaper. So, in recent years we have proposed and tested several non-traditional ways of making buildings that can undoubtedly be of interest to shipbuilders.
MADE OF PLYWOOD, BUT WITH A GUARANTEE
Open flat shelves on the walls — very comfortable and versatile kind of furniture: in addition, for example, books they can be beautiful to arrange flowers, vases, objects for interior decoration. In this case I want to offer a simple solution to the problem of mounting such shelves. It’s the supporting brackets, each of which consists of two main parts: wood composite corner under a shelf and metal profile for hanging it on the wall.
MINI CAR FOR KIDS
The first little micro-car “mouse” I built for my kids. As far as he was able, the readers of “Modeller-designer” can tell, after reading his description and drawings, published in “M-K“.
As a result, I accumulated some experience of designing and has already planned not as a child, and “adult” car. Called it “mouse-2”. Built a long time, or rather, not so much built, how many were looking for the necessary parts. This, in particular, due to the use of “Mouse-2” mechanical brakes (now I change them for hydraulic). Development drawings and the construction was carried out simultaneously, although the basic parameters of the “Mouse-2” was thought out by me in advance.
Bring him brief technical description. This twin four wheeled vehicle with an engine producing 14 HP (working volume of 346 cm3) located in the back. Equipped with two independent braking systems: a primary (working) foot all-wheel drive and a spare (side) lever actuated on the rear wheels only.
SOLAR ENERGY-CLEAN FUEL
Researchers from the University of Manchester, together with colleagues from the universities of East Anglia, York and Nottingham, UK, are using nanotechnology to convert solar energy into a clean fuel.
The solar energy potential is vast — just one hour of sunlight provides as much energy as man uses in a year. But nobody has yet to figure out how to use that enormous energy to produce the fuel.
Professor Wendy of Flavell (the University of Manchester and her colleagues are working to create a solar nano-device on “quantum dots” — small bundles of semiconductors that absorb sunlight. The principle of operation of the device is as follows: when sunlight is absorbed, the temperature rises on semiconductors and their conductivity increases. Then acting on the molecules of the catalyst located on the surface of “points”, they create new fuel.
“THIRD HAND”
When working with small parts — for example, during soldering of electronic circuits, usually both hands are busy and you want or assistant, or an additional holding device.
COMPASS — DRILL ASSISTANT
If you need to drill through wall, out the other side exactly in the right place — use…a compass.
SOURCE THREE “STREAM”
For connecting various electronic and household devices designed for a constant voltage of 9, 12 or 15 V, requires adapter (the adapter from the network 220V). Usually every device it sells.
Meanwhile, there are many devices without adapters, but in some time the latter may be useful, for example, to power portable electric drill (screwdriver), which has lost energy output of the battery, or receiver, whose “exhausted”, or other similar event.
It must be sufficiently powerful and reliable power source, with automatic protection of output (triggered by a short circuit in the load) with the universality (outstanding various constant voltage) for use in the home.
