This game develops accuracy, shot power and a good eye. It is easy to manufacture, at the same time original. In any case, none of the guy this attraction you will not find.
Much easier working with a small nails can a upgraded hammer, with magnetic insert (see Fig.). To do this, cut a little wedge-shaped part of the firing pin, drill the socket for insertion in the press or zachekanivajut a small rod from the existing magnet or magnetized steel rod. The technology of them is very Read more…
Depressing statistic of the attacks on the secrets and the assets of the firms, organizations, entrepreneurs (and ordinary citizens) makes it necessary to take appropriate countermeasures, in particular, to acquire security devices and even systems. The proposed technical solution is one of them. Responsive to the appearance of outsiders (outsiders) in a protected area, this electronic guardian offices, apartments, warehouses and other premises in my own way belongs to the rightful owners and employees have “radiolocate” in the form of trinkets.
Elderly person or disabled person to raise the fallen or vyskolznula from the hands of the stick is always a problem. Easier to recover from this situation using a simple “bracelet” (from a leather strap, cord or tape) threaded into the handle hole, as shown in the figure. V. GOLOVASHIN, Rybnoe, Ryazan region.
Krysheval the trunk will be of interest to owners of cars that do not have a garage and have to leave to spend the night steel “horse” under the open sky. Most of them equip their vehicles with security alarm. However, it often works even from a passing truck or a number of powerful peals of thunder, breaking the night’s rest of residents.
In your magazine (No. 5, 1974), we wrote about how to extend the life of the aerosol can using a Bicycle valve. Here is another diagram of a homemade spray paint suggested by our reader A. by Malmakov from Alma-ATA region.
In the late 1950 O. K Antonov as chief designer of OKB-153, located in Novosibirsk, invited the leadership of the air force of the CAF and the draft aircraft short takeoff SLE-1. In the diagram of the machine catches the eye first of all, empennage mounted on two thin beams. Direct highly mechanized wing with flaps, drooping ailerons and an automatic end slats are two radial air-cooled engine AI-14R. It is through these engines takeoff power of 265 HP was able to put into practice the intentions of the designer.
Someone who knows Morse code or just going to study it, can build a simple device, shown in the figure. On a plywood Board install the battery B and the lamp L of the flashlight. Contactor In the manufacture of contact plate faulty relay. Now connect the parts to each other by wires. To increase Read more…
Vitaly It student from Ussuriysk, VI all-Russian competition of young avtomodelistov won first place. His car with the air screw has a top speed of 128 km/h.
This device is not very complicated and consists of the heating element, the mercury column and the solenoid. When the current is switched on starts to operate the heater — closed working contacts of the relay. When it starts to heat up the mercury, and the column rises to the level of the contact turns Read more…
