The first thing that comes to mind after Novoselov obtain a warrant for the apartment – such as drilling holes in concrete walls, how to attach the hooks to the asbestos cladding? Meanwhile, a variety of designs, there are many traffic jams, and you will always be able to do any of them, taking into account the thickness and strength of the wall, its technical capabilities and the number of required hooks and screws. The simplest option – all known wooden plug of solid wood. Its cross section should slightly exceed the diameter of the prepared hole. Cork hammered with a hammer, then drill its center, thinner than the intended nail or screw, nasverlivaetsya hole. Unfortunately, such plugs do not always provide sufficiently reliable fastening: wood rassyhaetsya from time to time, and seemingly firmly reinforced eaves curtains or favorite printmaking fall on your head.
Numerous devices to footwear designed to protect from a fall on a slippery road, have, as a rule, one common drawback: effective on the ice, they begin to help its owner to slip, if he sets foot on the stone floor or metal step. To avoid this, means snow needs at the right time to display to the off position. As described below, the device allows to do this.
Externally, this padlock is no different from thousands of his fellows, keepers of the storerooms and garden sheds and utility rooms, stores and warehouses. Dumbfounded except for one detail: it opens… with a screwdriver. Is it possible to trust such a frivolous device, to unlock which can even mischievous boy? “It is possible, — says its Creator engineer I. Yankin. — Open my castle, not even professional burglar, although the key is really little and thin as a knitting needle, screwdriver. The secret is not in the key, and in the castle!”
