Tales of the ozone hole

Winter came. This means that over the Arctic began to grow again the ozone hole. Last winter, she broke all records: was the largest in the entire 20-year history of observations and size equal to that of the Antarctic. What is dangerous ozone layer over the Arctic? And should I be afraid of him?

No one so far knows clearly what the ozone layer

Winter-2011 has given food for thought for Ecology and Meteorology: the first three months of the new year over the Arctic ozone hole appeared a gigantic area of 2 million square

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Astrophysics: external gamma rays harm the planet

October 8. Space — a cozy place. If a star explodes or black holes collide anywhere in our part of the Milky Way, they will create huge explosions, deadly gamma rays, X-rays, cosmic rays. Several studies have recently shown a higher power, such as supernova explosions and extreme solar flares can deplete the ozone layer, allowing ultraviolet radiation to penetrate to the surface of the Earth. This is enough to destroy life on earth or in the ocean. "We find that the short gamma-ray burst is even more significant large gamma-ray burst" — said astrophysicist Brian Thomas. The accumulated data

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The Antarctic ozone hole in 2012 was the smallest in 10 years

Area of the ozone hole over Antarctica, which in September reached its maximum size, this year was 21.2 million square kilometers — its lowest level since 2002, according to NASA.

The ozone layer — a natural shield that protects the Earth's surface from ultraviolet radiation hard, dangerous to living organisms. The sharp drop in the concentration of stratospheric ozone during the winter season was first discovered over Antarctica in 1980. According to modern concepts, the destruction of ozone (triatomic molecules of oxygen) due to the impact of chlorofluorocarbons (CFC), which at low temperatures trigger the reaction of their decay. Each

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Oddities of the Sun, the red moon, the fiery sky conditions on Earth worsened

Comment by "Yet something is happening": Hue depends on the composition of Earth's atmosphere, as well as the height of the moon above the horizon. The most amazing color of the moon during an eclipse is the color of brick — red-orange. This phenomenon astronomers call during the night of the Red Moon: at a time when the Earth's shadow completely covers the moon disc, night light becomes reddish.The ozone layer absorbs 97-99% of harmful UV rays of the sun. It is located in the lower stratosphere, about 13-40 km above the Earth at sea level. Layer was discovered

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The ozone layer over Antarctica went on the mend

The ozone layer over Antarctica feels great, and the rent may take ten years earlier than scientists expected.

The ozone hole was first discovered in 1985, was soon associated with chlorofluorocarbons (CFCs), which are produced mainly in the Northern Hemisphere, but as a result of atmospheric flows are concentrated over the South Pole. The chlorine atoms react with ozone molecules and destroy the layer that protects the planet from harmful ultraviolet radiation.

The ozone hole in September 2006 (NASA image).

In 1989, suffering planet took over as the Montreal Protocol — an international instrument banning CFCs. Then experts thought

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Ozone hole tropics hydrates

Before the emergence of the ozone hole and after (Figure study authors) The ozone hole over the South Pole can affect the amount of precipitation in the tropics. The thinning of the ozone layer causes air currents in the southern hemisphere move south, resulting in eastern Australia and the south-west Indian Ocean more rain falls.

"The residents thought that the ozone hole, located so high up in the atmosphere over Antarctica, can not affect the climate at lower latitudes — said lead author Sarah Kahn, a member of the School of Engineering at Columbia University in New York. — In

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The ozone layer over the Arctic dwindled to a record

The thickness of the ozone layer over the Arctic has decreased to a record level in the atmosphere due to chemicals. This is stated in the report of the World Meteorological Organization of the UN.

It clarifies the "Interfax", the amount of ozone in the Arctic with the onset of winter has decreased by 40%, while in the winter of 2010 it fell by 30%.

According to scientists, the main cause of ozone depletion in 2011 was the action of chemicals and an unusually cold winter. However, experts predict that by

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The first native 3D-printers — On Sale

The founder of a young company, "Cypress" in the truest sense of building your business with help of 3D-printerov.Ofis startup in Zelenograd, its atmosphere is very reminiscent of the "technological start-ups" of the late 1980s. Is that on the table are "Poppies" and is collected here nekakoy someday AONy or prototypes of the first personal computers, as well as much-3D-ready products printery.Chast immediately incorporated into the manufacturing process and starts printing new copies of printers. Production of capital goods for the production of the means of production — and so on ad infinitum? However, the capacity for self-renewal in modern

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Discovered a new threat to the ozone layer of the planet

British scientists from the Universities of Leeds and York, discovered a new threat to the ozone layer of our planet. Scientists were able to establish that in the boundary layer between the ocean and the atmosphere generated previously unknown gas — couples gipooksidnoy acid.

The discovery was made in the laboratory, where a special aquarium scientists observed the reaction that takes place between the ozone in the air, and the iodine contained in the water. Professor of Chemistry at the University of York Lucy Carpenter explains, "We were able to model the interaction of ozone with iodine and

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Samples of digital printing company SUN at customs mistaken for real painting

Van Gogh "Sunflowers". Reproduction printed on special canvas using the technique of three-dimensional printing, simulating the brush strokes

Samples printed Innovative Company SAN performed in a unique technique of large-format 3D printing, detained at the Russian customs — they are really very similar to the originals of artistic curiosities.

Parcel with print samples for customers in Colombia, sent Innovative company SUN, detained by customs at a Moscow airport. Customs officers managed to mislead the valiant reproduction of a famous painting Van Gogh's "Sunflowers": It was printed on special canvas using the technique of three-dimensional printing, simulating the

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