Advice 1: Free shipping

One of the biggest online stores "" are many. The bulk of the orders is, of course, books and electronics. This is largely provided by the relative cheapness of the product and a large selection unlike conventional shops. But many when ordering deters the item "shipping". People are faced with the fact that the method of delivery it is uncomfortable or shipping is too expensive. However, there are a few ways to save on shipping, or even make a delivery with the "Ozone" is free.
Free shipping
When ordering in excess of 2000 rubles (for Moscow and Saint-Petersburg – 1000 roubles) there is free delivery in the code From there you can safely pick up. This is useful if you live in Moscow, St. Petersburg and other major regional cities, for example, Ufa and Yekaterinburg. However, the points of issue of orders as stated they own the website, are available only in 61 regions of the country, so for other customers this may not be very comfortable.
This method is suitable for the inhabitants of small towns or cities where there are no points of issue of orders There is an agreement with the Russian Post (Yes, the same!), which, if the order amount exceeds 1600 rubles, land transportation at any post office free of charge. The order comes quite quickly, its movement can be tracked via the number tracker on the website of the Russian post. When he comes, you come to the post office with your passport and pick it up. The only condition is that the order must be paid in advance that is prepaid. Prepayment can be done in any convenient way. Suitable electronic money, Bank transfer and credit card.
"Ozone" are frequent promotions in which you may purchase certain goods at a discount and with free shipping. Generally to participate in the promotion, you must enter the code word. It is possible to e-mail, if you subscribe to the newsletter. Sometimes the conditions of the promotion for free delivery with need to pay some special way, for example, a particular mobile operator or through a QIWI-purse. Such actions should be tracked. Often buy them much cheaper.
Recently introduced the status for regular customers. If you want free shipping with "Ozone", you need to get one of the statuses: Silver, Gold or Platinum. To describe the conditions of their production and bonuses does not make sense, as they sometimes change. On the website of the online store is all written in detail. If you are a regular customer, you can also get information about what you still have to do to get the next status. The status can also be obtained for the shares if, for example, the order goods of a certain amount or category for some time.

Advice 2 : As to ozone

Ozone is one of the variants (modifications) of oxygen, with the chemical formula O3. Under normal conditions represents a gas of blue color and with sharp characteristic odor. If it is subjected to liquefaction, takes a deep blue colour. The first mention of ozone refer to 1785. Ozone is a very unstable compound and rapidly converted to diatomic oxygen. The higher the temperature and lower the pressure, the faster is the transition. How can I get ozone?
As to ozone
The main industrial method – passing a powerful electrical spark discharge through oxygen or air. Synthesis, more specifically the electrosynthesis occurs in the "ozone generators". This method is based on the ability of oxygen molecules to break into atoms under the influence of the energy of electrical discharge. Atomic oxygen, in turn, immediately unites with a molecule of oxygen, into ozone. Accordingly, the ozone reacting with oxygen atoms, is transformed into molecular oxygen. Thus, the reactions of formation and decay of ozone almost in equilibrium, and therefore the output ozone as a reaction product does not exceed 5-7%.
Much more concentrated ozone (from 30 to 60%) can be obtained by electrolytic method, for example, by electrolysis oxychloride acid, but it is fraught with great difficulties. Suffice it to say that the temperature of the electrodes, and electrolyte temperature should be from -56 to -65 degrees. In such elektroliza, the decomposition of ions and radicals by the scheme:
H2O + O2 = O3 +2H+ +2e-.
In laboratory practice, a small amount of ozone is extracted by photochemical method, under the influence of direct solar radiation. These oils give a very low yield of ozone (about 0.1% of "working" with air, and 1% - pure oxygen), but is simple in construction and compact.
Useful advice
This substance is a powerful oxidizing agent, far stronger than diatomic oxygen. Ozone reacts with almost all metals, except gold and iridium and platinum. Used as a highly efficient disinfectant, and the so-called "ozonation" has many advantages over the "chlorination". Also ozone is used for sterilization of medical products, for paper bleaching. The main role of ozone is that while in the stratosphere, he saves all life on Earth from UV-b radiation.
Is the advice useful?