15 interesting facts about water
Water - the most simple and familiar substance on the planet. But at the same time, water is fraught with many puzzles. It still continues to investigate the scientists are finding more interesting data about water.
Fact one: the purest water in Finland
According to UNESCO, the purest water is in Finland. A total of fresh natural water participated 122 countries. In this case, 1 billion people worldwide have no access to safe water.
Fact second: ice quickly get out of hot water
What is the water quickly turned to ice: hot or cold? Logically, then, of course, cold. After a hot, you must first cool and then freeze, but the cold does not need to cool down. However, experience shows that the ice is fast becoming the hot water.
The exact answer to the question, why did the hot water freezes faster than cold, still does not exist. Perhaps the fact difference supercooling, evaporation, ice formation, convection, or to cause exposure of diluted gases for hot and cold water.
Fact Three: supercooled water
All well remember from school physics course, that water freezes at 0 degrees and boils at 100 degrees. However, there is a so-called supercooled water. This property has a very pure water - without impurities. Even when cooled below the freezing point of this water remains liquid. But in fact, in both cases there are the temperature at which water would boil or ice.
Fact four: the water for more than 3 states
From school everyone knows that water has 3 states of aggregation: liquid, solid and gaseous. However, scientists isolated 5 different states of water in liquid form and 14 states in the frozen form.
Fact five: water as a glass
What happens if you take the frozen pure water and continue cooling? With water miraculous transformations occur. At minus 120 degrees Celsius water becomes highly viscous or viscous, and at a temperature below minus 135 degrees, it turns into a "glass" water. "Glass" water - a solid, which lacks crystalline structure, both in the glass.
Fact six: the basis of life - water
Water - the basis of life. All living animal and vegetable beings consist of water: animals - 75%, fish - by 75%, jellyfish - at 99%, potatoes - by 76%, apples - 85%, tomatoes - 90%, cucumbers - 95 %, melons - by 96%. Even a person is out of the water. 86% of the water contained in the body of a newborn and up to 50% in the elderly.
Fact Seven: water - carrier of diseases
Water not only gives life, but it can also take it away. 85% of all diseases in the world is transmitted through water. Every year, 25 million. People die from these diseases.
Fact Eight: man dies without water
If a person loses 2% water by weight of his body, then he has a strong thirst. If the percentage of lost water will increase to 10, then the person will start hallucinating. If you lose 12% of people will not be able to recover without the help of a doctor. If you lose 20% of people die.
Fact Nine: most of all fresh water - in glaciers
Where the most water? The answer seems obvious: in the oceans. But in fact, in the mantle of Earth's water is contained in 10-12 times more than in the oceans. Moreover, almost all the available body of water on the planet is not suitable for drinking. We can drink only 3% of the water - that is how much we have fresh water. But even most of these 3% is not available, since it is contained in glaciers.
Fact Ten: water as diet
Using water as possible to fight obesity. By consuming only water from beverages, we can dramatically reduce the total caloric intake. Firstly, because the person stops drinking high-calorie sugary sodas and juices, and secondly, because after less water pulls take sweets, as is the case with tea or coffee.
Fact Eleven: Water for a Healthy Heart
Water helps reduce the risk of heart attack. During the study, researchers found that those who drink about six glasses of water a day, a lower risk of heart attack as opposed to those who drink just two glasses.
Fact twelve: 35 tonnes of water for the life of
Without water a person can live a very short time. The need for water is second only to the oxygen. Without food a person can live for about six weeks, but without water - five to seven days. In all his life a person drinks about 35 tons of water.
The fact of the thirteenth: most expensive water
Water may be free, and can be very expensive. The most expensive in the world of water is sold in Los Angeles. Manufacturers pack the precious liquid with a balanced flavor and ph value in with "Swarovski" rhinestones bottle. There is such water $ 90 per 1 liter.
The fact of the fourteenth: there is water that burns
There is a dangerous water. For example, in Azerbaijan there is water, in which a lot of methane, so it can catch fire if exposed to a match. And in Sicily in a lake is acid underwater sources that poison all the water in this reservoir.
The fact of the fifteenth: the protein in water
Sea water - a very nutritious substance. In 1 cu. refer to such water contains 1.5 g of protein and other substances. Scientists believe that one only the Atlantic Ocean on its nutritional value is estimated at 20 thousand. Crops, which are collected for the year throughout the land.