Buzzer on digital circuits switching on/off of electronic devices with power supply of 12 V.
In the car a lot of devices that are included in the operation key or switch. To control the inclusion of a device only by clicking a mechanical switch (which when the machine can not hear) or visual position of a key (which is not easy in motion).
Decided to share with readers design “durable porch”. Beautiful and durable step can be made quickly and simply to any person does not possess the skills of a bricklayer.
For the manufacture of the porch will need the following tools: drill, drill bits 6-12 mm; cutting machine “Bulgarian” with disc diameter 125 mm; tap M8, key 13, screwdriver, vise, level, trowel and hammer. Materials: brick anywhere; the battle of brick or rubble; flat slate; metal angles (enough 45×45 mm); М8х25 mm screws (with countersunk head); wire diameter of 2-3 mm.
A Spanish engineer named patalo were collected 12-cylinder V-shaped engine, which, he believes, is the smallest such engine in the world. The engine consists of 261 element, made of aluminum, bronze and stainless steel.
Now a lot of household groceries, from a tea infuser to a variety of bulk products are packaged in metal cans with lids.
Of such containers is easy to do for kitchen a handy little grater, punched in the lids with a nail rows of holes.
Since ancient times, people hunted their own food, collecting edible berries, Yes berries. The method of collecting the berries ever since has remained the same — squat or bend over to the Bush, tearing the berry (or better a handful of berries) from the twigs and put them in the basket. To pick berries, so, of course, also possible, except that the hands will crush some on the branches, and even bite who of the inhabitants of the forest or swamp. Bend over each berry was not easy, and productivity is low. Although, what kind of work is the pleasure of communicating with nature, except that bend-unbend still hard.
In 1987, the water came down, “LUN” the first ship of the series of combat missile-carrying wig weighing 400 tons was the Chief designer V. Kirillov was. The ship was armed with three pairs of cruise missiles 3М80 or 80M “Mosquito” (NATO designation SS-N-22 Sunburn). The second “LUN” is also laid as a missile, but the outbreak of the conversion has made adjustments, and it was planned to build as a rescue.
There are many enthusiasts for whom the recumbent was the only passion and hobby. And there are people for whom the velomobile is literally life. More precisely, the ability to move that, in General, interrelated.
And for such a vehicle is important, not speed, not capacity, and most other specifications: light weight, maneuverability, ease of management. And most importantly, that the recumbent was comfortable and not difficult to operate, occupy little space during storage, and, preferably, to serve as a good simulator. Who among the optimists who, for whatever reason, restricted mobility and social circle, not want to recover your mobility!
The case of a thick marker can be used for storing all kinds of small items (e.g., drills), if you remove the writing end element.
On the polished surface of furniture, often there are whitish spots (e.g. from a hot object), which spoil the view.
Shovels, hoes, axes — any cutting tool before sharpening, it is useful to hold at least an hour in a weak solution of