Snow lies. Flying snowflakes . What is unusual about that? Just winter came. Nevertheless, this is another miracle of nature, which gave us this wonderful world !
At the beginning of XXI century professor at Caltech astronomer Kenneth Libbrecht began his research in the field, in the snow. His laboratory snowflakes grow artificially and studied under a microscope.
Incredible beauty, is not it? Here, truly, - a wonderful all around us. So, when there is snow or snowflakes fly, we are witnessing not just a phenomenon of winter on the ground, and this natural wonder worthy of study.
clear line ice particles have a perfect hexagon, and a point in the center seems to be saying that the invisible The engineers working with a compass.
clear line ice particles have a perfect hexagon, and a point in the center seems to be saying that the invisible The engineers working with a compass.
Snowflakes - ice crystals - formed in the clouds at -20-40 degrees. At first, their diameter is less than 0.1 millimeters, then under the influence of air currents crystals fall within the cloud, melts and stick to each other.
then they rise again and freeze. In this case, they grow by moisture from the air. When the crystals become too large and heavy, they leave the cloud.
But they came the land of snow, but if the temperature is below zero. If the temperature is higher, snowflakes evaporate and turn into steam which rises up again. Or the crystals melt and fall to earth as rain or cereal. And sometimes it happens that on the roof of high-rise buildings is snowing, and on the street - is rain.
then they rise again and freeze. In this case, they grow by moisture from the air. When the crystals become too large and heavy, they leave the cloud.But they came the land of snow, but if the temperature is below zero. If the temperature is higher, snowflakes evaporate and turn into steam which rises up again. Or the crystals melt and fall to earth as rain or cereal. And sometimes it happens that on the roof of high-rise buildings is snowing, and on the street - is rain.
Are there two identical snowflakes? No! This was shown in his works farmer Wilson Bentley in 1885, it's the first picture could make snowflakes under a microscope. And it took him 46 years for this!
Snowflakes form depends on many factors. Each snowflake - a collection of ice crystals, which take the form of needles, prisms, plates or hexagons. Water molecules, as we know, consists of two atoms of hydrogen and one atom of oxygen and crystallization, it can form only three and hexagon shapes.
Kind snowflakes depends on the water content in the cloud, where it originated, air temperature, altitude above sea level. Even if it is "born" two identical snowflakes, they will be the path to the ground at a speed of about 1 km. per hour. They come in different temperature conditions and flies to the ground with a completely different pattern, but always hexagonal shape.
Kind snowflakes depends on the water content in the cloud, where it originated, air temperature, altitude above sea level. Even if it is "born" two identical snowflakes, they will be the path to the ground at a speed of about 1 km. per hour. They come in different temperature conditions and flies to the ground with a completely different pattern, but always hexagonal shape.
But if a snowflake - a crystal, then why it is white, it also has to be transparent? This is due to air (95%) made it! The light is reflected on the surface between the crystals in the air and dissipates. Remember, we're talking to you, why is a rainbow ? Thanks to the air very light snowflakes. Even during the very strong snow drifts people or animals can breathe under the snow for a long time.
Incidentally, January 22, 2012 we will celebrate the snow day ! It is an initiative of the International Ski Federation.
Incidentally, January 22, 2012 we will celebrate the snow day ! It is an initiative of the International Ski Federation.
Interesting fact: The largest snowflake , according to the Monthly Weather Review, fell to the ground in 1887 in the United States (Montana). Its diameter exceeds 38 cm
Yes! These wonderful pictures depicting winter nature, you can download and use as desktop wallpaper Snow . Here is another picture. I liked the author's intention that promotes Coke.
Well, friends, secret snowflakes ajar. This wonderful world has given us a miracle that you and I can watch every year. Let us in this age of high technology will find the time to stop and evaluate the work of Nature, when there is snow and falling snowflakes !
Well, friends, secret snowflakes ajar. This wonderful world has given us a miracle that you and I can watch every year. Let us in this age of high technology will find the time to stop and evaluate the work of Nature, when there is snow and falling snowflakes !
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