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Crayfishes compete for optimal water temperatures

The survival of many animals depends on their ability to compete for resources—food, water, shelter, or territory. But could optimal temperatures be an equally valuable resource for cold-blooded species—and a reason for territorial disputes? Canadian scientists led by Glenn J. Tattersall have observed this type of competition in the Louisiana Crayfish, Procambarus clarkii. When it comes to securing a territory with the right temperature, this crayfish shows behaviors similar to those seen in traditional intraspecific rivalries.

The behavior of the Louisiana Crayfish was recorded with video cameras and analyzed later. The experimental containers (so-called shuttle boxes) were divided in two.

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Tu-204SM has been successfully tested at low temperatures

Continuing certification tests entirely new family of aircraft modification "Tupolev" — Tu-204SM. One of the two cars after the stage of improvements in the production of the final assembly of CJSC "Aviastar-SP"Successfully completed flight testing at low temperatures in Yakutsk Sakha Republic.

Within 10 days were 12 flights at temperatures up to -45 degrees Celsius. Results are positive: all the equipment, systems and engines airliner operated in accordance with the stated specifications and airworthiness requirements. The tests took place in the cold under control specialist team flight test facility Zhukovsky, took part in the certification experts

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Tu-204SM completes certification

At present, almost all the tests are finished, except for the tests at low temperatures and high intensity of icing, which are likely to be held soon in the Arkhangelsk region. In the certification of the aircraft involved two Tu-204SM. Additional certification tests are carried out only within the framework of the major changes made to the Tu-204SM compared with the Tu-204-100.

Tu-204SM previously successfully fly off in Yakutsk when severe frosts, in the United Arab Emirates — at high temperatures, and also performed a number of take-offs and landings on wet surfaces.

This

Continue reading Tu-204SM completes certification

2011 — one of the hottest in history

2011 — one of the hottest in the history of weather and climate

Goddard Institute for Space Studies in New York, has published comparative data Temperature XX and XXI centuries. According to studies, the average temperature around the world reached record levels in 1880, finishing 9th. The temperature was 0.51 degrees Celsius higher than in the mid XX century.

Scientists claim that the planet is getting more energy than it gives, and this leads to higher temperatures. Even with the existing strengths of the cooling process due to this phenomenon, as La Niña, as well as the weakening of solar

Continue reading 2011 — one of the hottest in history

Alaska began early season severe cold

Alaska began early season severe cold weather and climate

Almost throughout Alaska recorded atypical for mid-November low temperatures. Daytime temperatures, which keep the whole day in the city of Fairbanks, hit record in 1911. Morning temperatures reach minus 41, while the most typical for this time of year, the temperature in the range from plus 9 to minus 9 degrees Celsius.

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What are climate change Britain?

What are climate change Britain? Weather and Climate

According to national estimates of the risks of climate change in the next ten years, annual losses from floods in the UK can reach billions of pounds, while agriculture and tourism can compensate for the loss.

Arguments "for":

Reduction in mortality in winter in warmer temperatures. To date, 26 to 57 thousand people die prematurely from the cold. By 2050th these rates may be reduced by up to 4-24 thousand.

Reducing the amount of electricity consumed.

The influx of tourists to the UK.

The increase in wheat, sugar beet and potatoes, the

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The record low temperature recorded in Yakutia

The record low temperature recorded in Yakutia Weather and Climate

At the beginning of this winter in Russia, the weather was unusually warm. In Kaliningrad, January 2 temperature remained at around + 9,5 ° C, which is a new seasonal record in the north-western Russia. For the past hundred years at this time for the Finnish brings cold weather in the vicinity of St. Petersburg and further to the west, did not happen in 2012. However, in eastern Siberia to Yakutia raging abnormal frosts with temperatures up to — 56 ° C. In the Far East, the thermometer fell to

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The warmest decade

The first 10 years of this century were the warmest in history, according to the World Meteorological Organization (WMO), the United Nations. In addition, according to scientists, the outgoing 2009 finished fifth in the last 160 years in terms of high temperatures.

"In 2009, the excess of the normal level of temperature was observed on every continent except North America — it was cooler standards — said WMO Secretary-General Michel Jarraud. — The warming trend in the face. This fact leaves no doubt. "

"El Niño" warm the planet, "La Niña" — cools

According to the WMO, the

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High Temperatures, Russian Academy of Sciences — one of the largest research centers in Russia in the field of modern energy and thermal physics

Institution of the Russian Academy of Sciences Joint Institute for High Temperatures dates back to 1960 — the year of the Laboratory for High Temperatures, Academy of Sciences of the USSR. Over the past 50 years, the Institute of little scientific laboratory at MEI became the largest institution of the Department of Energy, Engineering, Mechanics and Control Processes, Russian Academy of Sciences, the country’s leading research center in the field of Energy and Energy Densities.

Institute building on the street Ingrian

 Photo source:tripod.com

The main activities of the Institute are:

— Solving the problems of creating an

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Tu-204SM completes certification

At present, almost all the tests are finished, except for the tests at low temperatures and high intensity of icing, which are likely to be held soon in the Arkhangelsk region. In the certification of the aircraft involved two Tu-204SM. Additional certification tests are carried out only within the framework of the major changes made to the Tu-204SM compared with the Tu-204-100.

Tu-204SM previously successfully fly off in Yakutsk when severe frosts, in the United Arab Emirates — at high temperatures, and also performed a number of take-offs and landings on wet surfaces.

This

Continue reading Tu-204SM completes certification

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