In our self-similar groups the foam — some of the most popular materials. One day we read in the “M-K” (No. 9, 1977) about the different ways of processing foam. We liked most of the foam cutting hot wire. We did a few of their stanochki and accessories and we offer readers “M-K” is one of them. It’s called “Electrothermal Board cutter”. All the details of it mounted on a wooden U-shaped panel assembled and glued plywood 12 mm. Cutting tool is nichrome wire thickness of about 0.5 mm, sandwiched by two M8 bolts, drilled through by a drill bit Ø 2 mm. Supported by her taut arc spring strip steel with a thickness of about 2 mm, privernuty to the panel with two screws M8.
DIMENSIONAL…
It is often necessary to pour a certain amount of fluid in a pan or bucket. Not to do it “by eye”, rather on the inner surface of dishes used to put a measuring scale, calibrated in litres. Depending on the material of the vessel, the risks can be incised or applied the paint counter.
If you doubt the validity of a diode, transistor or want to determine their conductivity type, use one of the devices with which we introduce you in this article. The advantage of the devices is simplicity: they can even build a new ham. The basic design is based on schematics from the Bulgarian journal “Radio television electronics”.
Iron refers to those appliances, which seem to all have long known… Inside the case, near the massive base (sole plate) heating element is a tungsten spiral. The warmth of her through the soles heats the tissue. It would seem that I can come up with is new? Is it just to try something to change the design. But already there are more than two dozen varieties of irons. There is even a separate 307-75 GOST, according to which domestic irons are produced with a power of 250, 400, 750 and 1000 W, with weight from 0.8 to 2.5 kg with a temperature of 60-90°, 100-130°, 160-200°. Moreover, the heating time ranges from 3 to 10 min. And whether you ever get the idea to stroke… light? Yes, it is light. All know how hard it is to turn out of the cartridge burning lamp with your bare hands: you can burn yourself. And what it is stronger, the more difficult the task. The culprit — the so-called heat radiation. That used iron a new type of photon (author’s certificate No. 538074).
These two even look something like a high-performance tool developed by young innovators Dmitrov excavator plant. Brings them closer, and purpose: making large-diameter holes. The difference between constructive because they are intended for use with different materials.
One of the most important tasks of fighter aircraft is to protect important areas, districts and objects on the territory of the country from air strikes. After the Second world war, the development of tactical flight characteristics of aircraft of a potential enemy greatly complicated the task of defense of the air borders of our country Location of U.S. military bases and their allies near the borders of the Soviet Union put the leadership of our country before the problem of protection from the threat of nuclear strikes on industrial sites and administrative centers, which until recently was considered a deep rear that the enemy at the most critical development of the fighting, It demanded significant expansion of the capabilities of the air defense Forces of the country increase their number to cover all important industrial regions, technical re-equipment of principally new types of weapons and military equipment.
Going to the beginning of the XX century followed the rest of the main “sea players” to build a large armored cruisers, Britain was at a crossroads. A very large armored ships in this class are medium and small sizes were like outside of the game Really, they are obviously and hopelessly lost to any battle with a well-booked “at arms”, and even surpassing them in size and armament. As opponents of the cruisers of the 2nd and 3rd grade remained except older vehicles of the same type, and even the products of sir Armstrong, designed for overseas meanwhile, the theory of war at sea remained close to linear classics, it was Assumed that the outcome of the struggle for possession of the sea would decide the General battle, which will involve numerous armadillos And such squadrons need a good tactical intelligence, conduct which could only cruiser So the need for light high-speed units has not been disputed, and there remained only the problem of selecting the required combination of power and speed.