Advice 1: How to distinguish genuine sheepskin

Fur have a high cost. For this reason unscrupulous manufacturers warmer products are trying to forge synthetic materials natural. Sheepskin has a number of features by which it can be distinguished from synthetics.
How to distinguish genuine sheepskin
Note the color of the fur and skin. Sheepskin can not be dazzling white. If fur and skin have a nice creamy shade, you are likely not fake. You should be alerted if the product is a bright creamy or even peach. But one option is hard to judge.
Smell fur. If it is suspicious or synthetic smell the distinct aroma of the dye, sheepskin fake. When buying colored fur, this method is unreliable. But if the thing was correctly processed, even after the color remains subtle smell of natural wool.
Pull the skin in different directions in the area of any seam. If this is genuine sheepskin, the seam will be invisible through the fur, as the skin is stretched. Synthetic materials are less dense and if they pull, you will notice the thread.
Synthetic forgery can be distinguished from the original, if you try to separate the fur and skin. If they break, it is usually the material, which is glued to the fur. When bending the sheepskin should not be seen nor glue, nor any materials. To separate the fur from the skin is impossible.
If you have already bought a fur coat, but you are plagued by vague doubts about its authenticity, then find out it may be a result of wear. Natural sheepskin not hot, but at the same time and not cold. In synthetics, the person begins to constantly sweat and feel uncomfortable.
Buy similar products in major stores with a good reputation. Of course, the price can be much higher, but the chances to buy a fake times are reduced. If you have never bought stuff from sheepskin, before you make a purchase, walk around the different shops to compare how the real product.

Advice 2: How to distinguish a synthetic oil from mineral

Currently, the automotive accessories market is huge, motorists can choose for your car any product depending on their needs and capabilities. But how to navigate among such a range? For example, when choosing motor oil, the question may arise which one is better for your car? There are synthetic and mineral motor oiland synthetic blend. Depending on your goals and situation, you need to choose a more suitable. So what is the difference between oils?
How to distinguish a synthetic oil from mineral
You will need
  • mineral motor oil;
  • synthetic engine oil;
  • - consultation of the dealership.
First, we need to focus on your car. As a rule, manufacturers of certain brands often provide tests of the mechanisms their cars. Based on this, they often give advice on the type of oil that best fits this type of engine. Dealers service centers can advise you, choosing what to make your model the right products
It is necessary to take into account seasonality and certain properties of motor oils. So, mineral oil is natural, that is, has a basis in her original form after refining. A synthetic created by a synthesis of the natural substrates with so-called additives additives each of which has certain properties. Creating a synthetic basis was required when mineral oil isused for aviation purposes, began to freeze at low temperatures. Under the influence of chemical molecules natural base has acquired new properties — resistance to temperature changes. It was invented synthetic mineral oil. The ability to maintain its original properties (viscosity, yield stress) when the external environment is one of the main differences between synthetic oil from mineral. Due to this property, those who are in the winter, use synthetic oil, the engine starts easier. Because at first, he warms up, then overheats, then cools down — and synthetic oil at this time is operating as usual.
The second distinctive feature of synthetic oil is its life. Filling your engine with mineral oil, you have to understand that to change it you will have more, as it quickly becomes unusable. It should be noted that it is best to use motor oil in the same category and manufacturer. Mixing oil is not desirable. The best option would be to either stock up on Pro stock one oilm or a mix of different characteristics (viscosity, labeling) oil one manufacturer than of the same type (mineral or synthetic) of different companies. Since the production technology is different, the oil may coagulate, which will not result in anything good for the engine.
Useful advice
Also synthetic oil can reduce engine wear, increases power, makes it easier to start a cold motor in the winter and also to save fuel. Semi-synthetic motor oil combines quality mineral oils and synthetic. They differ from synthetic because they are composed of a smaller number and concentration of additives. Mineral oil generally wins in the price index. Usually it is half or two times cheaper than the synthetic oil.

Advice 3: How to distinguish natural amethyst from synthetic equivalent?

Natural amethysts are beautiful and relatively inexpensive. Synthetic amethysts are more than perfect and are sold a lot cheaper. However, before you get stuck on the question of choice is not even worth it. It is concerned with how to distinguish natural stones from man-made analog...
There are many methods of determining the authenticity of amethyst. Go from simple to complex...

Visual inspection allows to reliably determine the presence of stones of uneven color. Smooth purple color, also change its color with the change of lighting, has a synthetic amethyst. Natural gem izvechen uniform.

Tactile contact (attach the stone to the inner side of the elbow) makes it possible to investigate the thermal conductivity of the sample. Natural amethyst long keeps cool. Its synthetic analogue is heated much faster.

Water test, for all its simplicity, very informative. Real amethyst in the water looks pale around the edges. Synthetic, being immersed in a container of water, looks exactly painted.

In UV light a natural gem looks uniformly pale. Synthetic stone under the rays of UV lighting reminds of a leopard...

Jewelry processing of the stone involves the abandonment of the girdle amethyst insert rough – if the stone is natural. Synthetic amethysts have polished the gap between the crown and the pavilion.

In the presence of the microscope (including portable) make sure you have many of the defects of natural stone. It is a synthetic analogue of any of the cavities of the tubules, cracks and other irregularities completely devoid.

Spectral and x-ray diffraction analysis – methods of the laboratory, accurate and cheap. However, they help to find out the truth in the most severe cases.

Advice 4: How to distinguish organic vegetables from the vegetable nitrates

Nitrates – salts of nitric acid. They are in every living organism, so their presence in the human body is perfectly natural and is no harm. But the excess of these substances is dangerous to health. Basically, the nitrates enter the body from foods of plant origin, primarily from vegetables. Therefore, it is important to know how to distinguish the useful vegetables from nitrate.
How to distinguish organic vegetables from the vegetable nitrates

How to determine the naturalness of vegetables

First and foremost, you want to track seasonality. If the season, for example, of tomatoes, has not yet come, and you see them on the shelves, so they imported. And in order to increase their shelf life, they add nitrates. Find out on the duration of the harvest seasons of your country and not be fooled.

Chemicals are added to the vegetables to keep their appearance. Therefore, if the products look unnaturally flawless, fresh and strong, most likely, they will not benefit you.
Remember, lice, and flies attracted by the aroma of natural products, so they completely ignore nitrate.

How to avoid mistakes when choosing vegetables

When choosing tomatoes pay attention to their color. If they have an orange tint, it means they were grown with application of fertilizers. Then try the tomato to the touch. Push down with your finger: if the skin does not burst and it left a dent from your finger, rather, the product is full of nitrates.
Sometimes the tomatoes are sold directly on the branches. Hemicalname tomatoes are nice and fresh, they do not detach from the branches, even if they begin to rot inside.

When choosing cucumbers move your hand over their surface. Soft, thin, easily erasable spikes talking about the genuineness of the product. Rude thorns and dark green skin means that cucumbers grew on nitrate plantations. If there is no smell of pickles to buy and not worth it.

Journalists held a special experiment in which revealed that the majority of cucumbers on the market and in supermarkets don't smell, and therefore taste.

When choosing carrots, note the color. Natural fully orange, it lacks the green and yellow specks.

When selecting cabbage do not think that the black dots and stains on it indicate the absence of nitrates. On the contrary, dark spots on leaves is a fungus that develops on nitrate in vegetables.

Test the cabbage. Leaves natural usually dense. The base of the leaves, the stalks should not be fat.

Potato tubers grown without added chemicals, are also recognized in appearance and to the touch. Potatoes with green spots suggests that the tubers had spent too much time in the sun. These stains are a sign of the presence of toxic solanine toxin produced in plants and are very dangerous to human health even in small doses.

Natural potatoes should be firm and elastic. Tubers, containing a large amount of pesticides and nitrates look smooth and even, and they feel quite soft.

If you press on the potatoes with a fingernail, you should hear the crunch. If the nail enters the tuber without sound, it means that such potatoes grown on mineral and nitrogen fertilizers.
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