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.
THE NAIL WITH ONE HAND
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…
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.
Vitaly It student from Ussuriysk, VI all-Russian
You love music, but not always have enough time and opportunity to go to the Opera or attend a concert. However, modern high-quality instrument sound allows you to “go” at the concert of your favorite artist and comfort of your own home. But before you buy such equipment, you need to know what requirements it must meet.