Roller knot. Tourist tips

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Roller knot. Tourist tips

Tourist tips

For tying roller assembly on the fishing line, you first need to make a simple knot and insert the running end of the leash into it. The latter must be fixed likemultiple eight around the line and the root end of the leash.

Such fastening is quite reliable and uncomplicated.

Rice. 133. Roller assembly

Author: Skryagin L.N.

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Avoid emulsifiers 22.07.2013

Scientists from the Norwegian University of Science and Technology have found a new way to control the behavior of oily substances using an electric field. Despite the seeming insignificance of this discovery, it can radically change many production processes that are used very widely: from the food industry to the oil industry.

Each of us uses certain products containing oils and fats: from sunflower oil for frying, to shampoos and car fuel. Many food products are made on the basis of an emulsion, that is, a mixture of water and oil. It is very difficult to maintain this mixture in a pleasant-looking and tasting state, the most careful selection of emulsifiers is responsible for this. Note that it is very difficult to choose the right emulsifier and its concentration (corresponding products are tested even in space!), but even after a long and expensive development, an unattractive product is often obtained, moreover, with an emulsifier substance that is not the most beneficial for health. Similar difficulties are experienced by the oil industry: when separating a mixture of oil, water and gas.

But it seems that Norwegian researchers have found a way to solve this problem: they have developed a technology for controlling oil droplets using an electric field. Scientists conducted a very simple experiment: they placed clay microparticles in liquid silicone. Of course, as expected, the microparticles immediately stuck around the oil drops, simulating the age-old problem of separating and mixing emulsions. However, when an electric field of a certain strength was created, clay microparticles quickly lined up in a ring around oil drops, and by controlling the electric voltage, it is possible to control the process of growth of rings from microparticles.

Thus, there was a way to control the properties of the emulsion without the need for any chemicals. Perhaps the new technology will be useful in the production of foodstuffs, household products and cosmetics, in the creation of new drug delivery vehicles in the human body, as well as in increasing the recovery of oil-bearing formations.

Currently, scientists are engaged in a new series of experiments with various types of emulsions and hope that their development will find the widest possible application.

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