Focus | The survival encyclopedia


Choose a pair of binoculars

You have decided to choose a pair of binoculars. Where to begin? It all depends on your future plans. If you are going to take it with you camping, hunting expedition - you need field glassesBut it may come up and racing. Sports binoculars can be a good gift to a teenager. If you love extreme sports or go for a birthday to a friend or boss and want to show that find it really cool Maine, you will find useful night vision binoculars. Gift beloved mother-- opera glasses. If you are the owner or are fond of astronomy, you will probably need a pair of binoculars with a powerful zoom.Main features of Read more [...]
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Element postBPshnoy hygiene.

Good time of day!Probably not many people remember a time when the toilet paper was scarce. But in the case of PD deficiency may be back! Warning - traffic!Squeamish and persons without a sense of humor DO NOT WATCH!We offer a low-budget way to ensure hygiene perianal area. Known as the "St. Petersburg Jewish priests wiping method using tram ticket" (just do not have the accusations of anti-Semitism - "for he had bought, and sell it for.")Due to the lack of tram tickets, used layout:1. Fold the card along the lines of:so as to obtain the following blank:2. Torn off corner:3. We Read more [...]
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Making a fire with the aid of a reflector from the Chinese lantern

Komrad ahoy!Here I materialchik accumulated on the camera for the summer, decided to share with you my experiments.Today I will show how I tried to make a fire with the help of a Chinese lantern reflector for 86 rubles. All this took place in August of this year, a special heat was not observed, but the sun shone and warmed a bit - that was enough. Without much suffering I have achieved steady decay of dry leaves and was even able to start the fire.Unfortunately video with fire itself one of the children apparently deleted accidentally, well, but clearly shows that, with proper focus (which Read more [...]
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Magnifying glass, cotton, cigarette bunny

Tried to light a fire with a magnifying glass. Magnifier convex on one side 6 cm in diameter, 1.5cm bulge. In my opinion it fotoproektora of (youth). The weather is clear, 12-13 hours a day, geographically located in Samara. Longitude and latitude of who should I write. First experiment focused on the stupid piece of cotton, not even smoking. Focusing on the darkened rain tree, smoking. Subtotal: caught bunny))). 2nd: Rewind the wool into a dense clump focusing or anything. More Bunny))) 3rd: Vata arson and dimmed, uraaaaaa beginning to smolder at the focal point and everything! ((((As I was not Read more [...]
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Secrets of a successful fishing: Soft Baits contrasting colors

Baits contrasting colors often work especially well, so as to lure the attention of predators for different criteria in the light. Some manufacturers offer silicone worms in which mixed green and green. Necessary to direct attention to the fact that the installation of two-color or three-color lures jig is sharply contrasted with her impaled on silicone worm. Read more [...]
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Psychology of attention

Attention- Reflects the direction and focus of the human mind to a particular object, which ensures a particularly clear expression. The main functions of attention:·             Providing selection coming into the body of information in accordance with its actual needs.·             Employing selective concentration and prolonged mental activity on a single object or activity·             Activation Read more [...]
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Focus of attention

In humans, there are no such devices, so it can directly determine the focus of their attention, but, despite this, there is a consideration as a tool, and the ability to manage a major factor in determining the perception, behavior and fate. But how to recognize it, if it can neither see nor hear, nor feel? To learn how to manage it, it must learn to recognize as realized eyes, hands, feet, etc.If you want to change your step, you need to realize that you have a leg (not necessarily evaluate them, or any description, and just feel them), but in order to do something hands, you must first realize Read more [...]
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The principle of dominance

We proceed to consider the neural mechanisms of dreams, in which the origin of the cash stimuli are not essential. One such mechanism is the dream of the dominant physiological principle, formulated Ukhtomskii (Collection op., Vol IV, 1945, p 125). Under dominant Ukhtomskii understood "focus stationary excitation and increased reactivity in the centers." He considered the dominant principle as a special mechanism coordination in the nervous system. "It is a question - said Ukhtomsky, - the possibility of rebuilding the reactions and the possibility to predict their direction: Read more [...]
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Radiotherapy

X-ray - one of the methods of radiation therapy in which the therapeutic uses for x-rays with energies from 10 to 250 square meters. As the voltage on the X-ray tube increases the energy of the radiation, and with it his penetrating ability in the tissues increases from a few millimeters up to 8-10 cm Modern industry produces two types rentgenoterapevticheskih vehicles. One for short-X-ray beam energy of 10 to 60 square meters for the irradiation with short distances (up to 6-7.5 cm) superficial pathological processes of the skin and mucous membranes. Others for deep X-ray beam energy of 100 Read more [...]
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X-ray tube

Fig. 1. Therapy, x-ray tube with a tungsten anode massive: 1 - cathode, 2 - anode. X-ray tube - vacuum tube, designed for X-rays. X-rays are produced when braking accelerated electrons on the screen anti-cathode (anode), made of a heavy metal (eg, tungsten). Getting electron acceleration and deceleration is carried out in the most X-ray tube, which represents an evacuated glass bulb, which are soldered metal electrodes: the cathode (see) - to get electrons and an anode (see) - for their inhibition (Fig. 1). To accelerate electrons to the electrode voltages are.Wilhelm Conrad Röntgen (Wilhelm Read more [...]
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X-ray image sharpness

Fig. 1. The effect of the focus on the X-ray tube harshness image. At one and the same object of research (OR), the value of confusion (I) decreases with decreasing size of the focus tube (CFT). Fig. 2. Effect of focal length harshness image. The notation is the same as in Fig. 1. As the focal length blurring (H) decreases. 2. Sharpness call clarity shadow elements on the radiograph, and if we talk about the internal structure of the object, the structural (eg, bone, lung markings, etc.). Unsharp roentgenogram different "blurry" image fuzzy contours and details. There are two Read more [...]
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Surgery for cerebellar injury

With epidural hematoma shows emergency operation, is to remove the scales of occipital bone, sometimes bow Atlanta and draining the hematoma cavity. If after this the patient on the operating table was not satisfactory and revealed a significant expression stem symptoms, it is advisable to open wide the dura over the hemispheres of the cerebellum and in the occipital tank to reduce the pressure within the posterior cranial fossa. In the presence of a large focal cerebellar hematoma shown urgent surgery, which involves removing the lower parts of the occipital bone and scale atlas bow with the Read more [...]
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Method for the determination of the fault plane in the sign of the first arrivals of P-wave seismograms

To the following scheme: the letter F denotes the focus (hypocenter), and the letter E, the epicenter of the earthquake that occurs at a certain depth from the surface with a sharp right-shifts along a vertical fault plane (bFb'Z). Movements caused by shearing of the arrow. Great circle on the surface {A'V'AV) is the projection of the equator (a'b'ab) small sphere drawn around the focus. The projection is constructed as a trace of the cone through the point of the top of the equator, located below the Z.Consider four runs longitudinal waves coming from the focus F to the Read more [...]
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Magazine Rybachte us» № 8, 2010

Magazine "Rybachte with us" - the undisputed leader among the fishing publications with the largest circulation in its niche - 117,500 copies - and constant tendency to increase circulation. The focus of the magazine - information about fishing all kinds and forms, directions and features, tips for beginners and professional secrets. Apart from the fact that our readers will learn about fishing and recreation in the world, they also learn about a huge experience of Russian fishermen. The magazine "Rybachte us" Readers will find up to date information on new products manufacturers Read more [...]
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