Advice 1: How to get out of the whirlpool in the pond

Bathing in unfamiliar places during a beach holiday, and also the crossing of the water obstacle can be fraught with danger. This is especially true of places where there may be underwater currents or eddies, for example, near turbine power plants or dams. It is best to abandon bathing in such places. But what if you still caught up in this maelstrom?
How to get out of the whirlpool in the pond
Instruction
1
Entering the water in an unfamiliar place, make sure that you don't have strong currents or funnels. Usually such phenomena are called turbulence, can easily be detected visually. Define zone, boundaries which you will not swim. Try not to swim alone, always leave on the side of the observer, who may take measures to rescue swimmers if necessary.
2
Caught in the maelstrom or in the region of strong circular currents, try to overcome the possible panic that usually accompanies an unexpected event on the water. Often people trapped in the water, exaggerating the danger of the situation and begins to take actions that exacerbate the situation.
3
Pace yourselves and not try to fight with a circular course. Your task – to get out of the whirlpool with the least amount of effort. If you feel that you are drawn in a circle, try to paddle in the direction of rotation of the water methodically to swim out away from the center of the crater.
4
If you are drawn into the center of the crater with great force, and you feel that cannot cope with the flow, dial a deep breath and dive. While under the water, looking for which does not go in a circle, and brings to the surface and to the side. For, as a rule, there is always in the vortex at a certain depth, so your task is not to get lost, and make use of upflow.
5
If you are at a fairly shallow depth, then, once in the funnel, be very collected. The bottom in such places are usually littered with driftwood and stones, which are easily injured, escaping the maelstrom. If you feel that the swirling flow carries you on sticking out of the water a tree trunk or a boulder, try to put forward feet and to regroup to avoid hitting an obstacle head or other vital organs. Observe the main rule - in any situation, keep discipline, composure and self-control.

Advice 2: As there are whirlpools

The vortex – a spinning column of water which in the opinion of our ancestors could destroy everything with your path and tighten in your throat ships, boats and floating structures. The whirlpools are formed by sudden expansion channel flow projections over the shore and the collision of two currents.
whirlpool in the river
The whirlpools can be observed in small rivers and in the seas and oceans. The big danger they represent, but also completely harmless they aren't. On the river the vortex can delay a man, and he will choke. It is dangerous for boats without engine. Large sea swirl is better all to watch from a safe distance.

What is



A vortex is called a natural phenomenon which results in the circular movement of water in the upper layer of the pond, river or ocean. The cause may be the fusion of two currents of different speed and temperature in some parts of the waters or channel of rivers. Revolving in a small space, the water rushes to the outer edge of the vortex, resulting in the centre creates a hollow. The same natural phenomenon can be observed when a sudden expansion channel and flow projections the shore by the current. Marine eddies arise at collision of habitats and tidal waves and counter-currents. Sea water in the vortex can move at very high speed – up to 11 km/h and above. The funnel size in the open ocean can reach several kilometers.

In the whirlpool of river the water is rotating with the speed equal to the speed of the main flow. Whirlpools can form deep pits and are typical for mountain rivers. In the mountains very often formed of suwadi: in this natural phenomenon the water rotates over the surface or underwater mountains market or ledge in the Yar. A whirlpool formed by two currents with different speed and direction. Place of education suwada can serve various hydraulic structures – dams, levees, foundations of bridges, etc. Very often large suwadi formed during floods.

Types of whirlpools



In places where this phenomenon is formed continuously, the whirlpools are called constants. Seasonal eddies are formed in certain times of the year and there are intermittent. The most common type are the occasional whirlpools. To predict the place of their formation impossible as to count the possible damage they can cause. The whirlpools can be observed in various parts of the world. The largest known Maelstrom, off the coast of the island of Moskenes in Norway, Charybdis and Scylla in the Strait of Messina between Italy and Sicily and the vortex formed near the Niagara falls. The first record of Malstrem appeared in the 16th century, and about Scylla and Charybdis wrote Homer as two monsters, with power and cruelty which had to face Odysseus and his crew.

Advice 3: How is the vortex

With the formation of small craters on the river followed, perhaps, by many. A curious process raises many questions not only among children, who are watching in great admiration as the water flows, but also in adults.
How is the vortex

Physics



Interestingly, the process of the emergence of small and large eddies is nearly the same. Pick up speed, the water collides with the relief surface of the shore, or in the case of large oceanic eddies, from the opposite course. From such a strike due to the speed of the flow, the water back, creating an effect of torsion. Continuously aiming for the outer edge of the whirlpool, the water creates a special recess in the centre, forming thus the usual picture of the phenomenon.

Long and narrow bays or special terrain, characterized by preventing normal processes of water exchange with rocks – a great place for the emergence of a whirlpool, it received at the peak of the tidal mass of water does not have time to fully return to their borders and inevitably is faced with new threads having opposite direction of motion.

The strength and size of vortex is determined by combination of the existing natural circumstances, which considered the velocity of the water, especially tide, weather conditions, seasonality. The diameter of the crater can vary from a few centimeters to hundreds of kilometers, and the flow rate to reach as much as 11 kilometers per hour.

The types of funnels



All whirlpools are divided into permanent, seasonal and episodic, some of them go unnoticed, others can cause serious damage both on the individual farms and the whole States. It is known that the river swirl may drag the unwary swimmer and a large sea of forever enter into his arms in a powerful boat or a ship.

Relatively recently scientists involved in research of the world ocean, were found in the special eddies, rings, which are formed as a result of collision of vertical flows and can be found only on images received from the satellite. It is known that such rings can exist long enough, moving in the time direction for the southern hemisphere and in the opposite hour to the North. Their occurrence is caused by the action of the magnetic field of the Earth, forcing a mass of water to rise from the depths of the ocean, building powerful, able to exist for many years of natural design.
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