Explosions and fires resulting from gas leaks, unfortunately, are not uncommon. Recognizing the work of administrative bodies and emergency services, hams designers can do something yourself to minimize this danger. However, in the field of gas control is simple and accessible to a repetition of the device is almost there, or they are unnecessarily expensive.
There are industrial sensors, converts the gas concentration to voltage, current, resistance and other parameters. The ability to respond to changes in gas concentration have some oxides, especially the SnO2 — tin dioxide, doped various additives. On their basis it is possible to make an electronic device that responds to the excess concentration of a particular gas in air and emits sound signal.
GAS LEAKAGE SENSOR
The first mention of the project landing version of the aircraft, biplane, future of the An-2 is dated 1944. Then his traces are lost and emerge a year later.
To the store to buy a hood and install it in the kitchen is relatively simple — it requires only money, time and skills to screwed into the wall screws. But to diversify the inclusion of a drawing and automate it so that your hood has become to surprise the neighbors and, most importantly, to have added comfort in your kitchen — the case for the present enthusiastic radio Amateur.
Usually a small supply of potatoes is in the house constantly. Keep it in the cold (which is a large part of the year) in the kitchen: in bag, box or bucket. But such containers, except that is already scarce in our kitchens right now, to put it mildly, the interior is not decorated. I for storing potatoes made a neat voluminous stool with padded seat, which can fit up to three buckets of root crops. Bench simple, and made it a common tool, which is in the building each owner. Materials is also one of those that always have on hand.
Inhabiting your country house — be it a small garden or a well-built cottage — many trucks bringing in the furniture that has served its purpose in a city apartment. And most of all from this whole situation turns out patchy, cumbersome and is inconsistent with the view of the place of rest. Meanwhile, it is very easy to furnish the interior of the country easy to produce and easy to use items that are able to make themselves, gradually complementing thus the original set, which in the end will be solved in the same style.
In domestic faucets-bathtub faucets have a swivel pipe (“goose”) as a used seal rubber ring. Over time, it is embedded abrasive particles contained in the polluted water, and at every turn the “goose” gradually grind off the walls of the grooves, weakened by the hood when expanding. As a result, the tube begins to “become loose” mounting of the mixer and the water leak. Further use of the tube breaks at the annular groove under the ring and requires replacement. But do not rush to throw it away. If you wish, you can extend its service life and even to improve the operational properties of tap mixer by changing the method of compaction and the water supply to the bathtub and sink. It is enough to perform a number of simple maintenance operations.
If you wish for your site to have early vegetables — so you need a greenhouse. Only it will be able to create the conditions to maintain a constant high temperature and humidity of soil and air to plants both day and night. Designs individual Galic and greenhouses under the film a lot, and each has its own peculiarity, its rational beginning. Made in industrial conditions, of course, more technologically advanced, but the self-made greenhouses and greenhouses under the film often cheaper, more practical.