Dear editors! Send a description of simple tools that may be needed in the manufacture of furniture Think it will appeal to many I have it used successfully for years.
The usual tip is a spatula she is hidden by a rubber tube. This sheath not only protects the working tip of a screwdriver, but pockets. Pulled the head of the screw, it will screw it in tight spaces. With this nozzle easier to hold a screwdriver in Spiez unscrews the screw with a spherical Read more…
In the early 30-ies of the radio Amateurs of the Soviet Union, mastering of ultrashort waves, for the first time faced the necessity of direction finding of radio transmitters. The experiment was sometimes transformed into an exciting searching game, which gradually take the form of sporting events. In the late 30-ies of the radio orienteering sport is called “foxhunting”. The essence of this new sport was to locate on the ground three to five hidden transmitters with receivers-direction finders. The first transmitter / receiver equipment for “Hunting for foxes” operated in the range of 38 MHz.
Like many readers of “Modeller-designer”, my Hobbies are designing and making homemade equipment is therefore with special interest I read in the journal of machines and mechanisms created by craftsmen.
When I need to drill a hole in glass, I use this way. In the Chuck of the drilling machine is clamped copper tube length of 100 mm (the diameter is adjusted depending on what you need the hole). Tube pre-filled with a mixture of any mineral oil with dust, corundum, emery. When drilling rate Read more…
On 12 February 1960 on the information channels of the entire world was spread the message of the correspondent of the Agency “United Press international”, which referred to the statement of the head of the Department of research and development at the headquarters of the U.S. army of Lieutenant General A. Trudeau, 29 January for the first time a ballistic missile destroyed in the air with another rocket In the message also stated, used as a target unguided ballistic missile “Onest John” was intercepted and destroyed anti-aircraft missile MIM-23A complex “hawk” during the test on the range white Sands In confirmation of this message in the Ministry of defense was shown a film taken in the test process However, with all technical military significance of this achievement of this quality complex “hawk” missiles and MIM-23A were never in demand in their future fighting career.
Sand the angle of the junction of the wooden parts is a handful. However, the operation is much easier and faster if use the bar, one face of which is cut down at an angle of 45°: wrap the fixture with sandpaper and work will become much easier.
In October 1941, it became clear that the new light tank T-60, serial production of which began earlier this month, almost useless on the battlefield, His armor freely fought all anti-tank weapons of the Wehrmacht, and his own arms were too weak to fight with tanks of the enemy. To strengthen the same and then another without major design changes are not possible, the Engine and gearbox had worked in the overdriven mode. Growth of same weight combat vehicle, inevitable in the amplification of booking and weapons just would lead to the release of these units from the building Required a different solution.
Now available is a vast assortment of various acoustic computer systems — almost every company that produces computer hardware, supplies the market and the corresponding acoustics. The consumer only has to choose the right system, based on the ratio “price — quality”. But not everyone can afford the “cool” equipment, and at the same time, I feel that the sound was not worse. Well, for homebrew, even a novice, this problem is quite solvable: sound active inexpensive computer speaker systems can be improved independently. For illustration, the author offers a description of the modernization quite common columns SVEN (model SPS-828) made in China.
