Throwing glider pioneer. Non-motorized model glider is very popular among modelers. Made in the form of models of monotypes, throwing gliders allow for fun competitions on the range, while models in the air or on landing accuracy.
A very simple device in order to train the hand for, say, playing table tennis, can be done in just one evening. Here are the materials you will need for this. Two boards: one size 200X300 mm (6 mm) and the other 300X150 mm thick (18 — 20 mm); Reiki 20X250 mm; the bar from which we will make the holders; a piece of wire for the installation of electrical circuits, copper wire thickness of 0.5 mm for the coil and the hook. Oh, and do not forget to prepare the light bulb from the flashlight with cartridge mounting and battery KBS-L.
There are electric circuits of high voltage sources for aeroionizatora, which are collected on the basis of the automotive ignition coil. They are all quite simple and easily repeatable. However, the cost of the ignition coil is very high.
According to the drawings published in our magazine, readers from the city of Rovno A. Current and V. Rumyantsev built Dinghy “goldfish”. But their design turned out to be faster and more stable due to the increase in sail to 5.5 m2 (statement of headsail on the bowsprit) and change the length and width of Read more…
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.