Изучение языков укрепляет здоровье

Независимые иркутские ученые пришли к выводу, что изучение иностранных языков благотворно влияет на здоровье. Свои предположения они подтвердили с помощью медицинских исследований. Несколько лет назад изучение английского для иркутянки Елены Кардашевской было увлечением. Затем она заметила, что занятия оказывают на неё сильное эмоциональное воздействие. Чтобы подтвердить это, она обратилась к науке. Елена Кардашевская набрала группу, куда входили психологи, медики, преподаватели и студенты. Она предложила им пройти обследование до занятия иностранным языком и после них. Результаты оказались впечатляющими. « В ходе эксперимента изменения происходили в зоне эпифиза – это структура, которая отвечает за психическую энергию, за эмоциональную сферу человека. В этой структуре как раз и происходили изменения в позитивную сторону», – рассказал Андрей Потапов, врач реабилитационного центра биоинформационных методов лечения. Медики утверждают, что на подсознательном уровне у студентов наблюдался прилив бодрости. Ученые убеждены, что такой же эффект оказывают на человеческую психику классическая музыка и поэзия.

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Fire-fighting fluid leaves computers intact

Fires in computer centres, museums and libraries could be quenched with minimal damage by a liquid that leaves electronic equipment and books dry and unharmed even after they have been flooded with it.

Tyco Fire & Security of Boca Raton, Florida, US, has launched a fire suppression system called Sapphire that detects smoke and then spritzes the affected room with the liquid, which is known as Novec 1230.

The fluid, produced by 3M, has weak molecular bonds and vaporizes at just 49° Celsius, 51 degrees cooler than the temperature at which water boils. It stops fires before they get out of control by soaking up heat from the nascent blaze.

"This is a chemical agent that absorbs heat and vaporizes better than water," says Joe Behnke, a manager at Tyco Fire & Security. According to 3M's web site, Novec 1230 requires 25 times less energy than water to evaporate.

Novec 1230's special properties were showcased on the US television show "Good Morning America" this week, where a laptop computer - with its power on - and a book were dunked in a large tank filled with the liquid. The laptop still worked when it was pulled out, and the book dried within minutes.

Behnke explained the trick to New Scientist.The electronics had not shorted out because the liquid is non-conductive, unlike water. And while "the liquid did get into the components, their heat caused it to evaporate" into the air, he says. The thin layer of liquid on the book's surfaces also evaporated quickly.

Quick breakdown

Novec 1230 has six carbon molecules and in chemical terms is a fluorinated ketone. Unlike halons, which can take decades to break down in the atmosphere, Novec 1230 breaks down in just five days when exposed to natural ultraviolet light.

It does not deplete the ozone, and it is used in concentrations below that considered harmful to people's health, although industry standards require it to be used in closed rooms emptied of people.

The enclosed spaces are also necessary to corral the gas in the concentrations needed to extinguish a fire. Tyco launched its first fully engineered systems in January, but on Wednesday the company released new information about the system.

Ozone layer

Novec 1230 is one of 12 agents approved by the US Environmental Protection Agency (EPA) as an alternative to the fire-fighting agents known as halons, which deplete the ozone layer.

Under the UN's Montreal Protocol, first signed in 1987, developed countries phased out halons in 1994, while developing countries have until 2010 to do so.

Halon and its alternatives are known as "clean agents". A clean agent "leaves no residue - the discharge evaporates - and is electrically non-conductive, so you don't have any problems with electronic equipment", says Mark Conroy, a senior engineer at the non-profit National Fire Protection Association, based in Quincy, Massachusetts, and which works with the EPA on safety guidelines.

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