What birds are national? Detailed answer

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What birds are national? Detailed answer

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What birds are national?

The concept of "national bird" was defined by the XII conference of the International Council for the Protection of Birds (Tokyo, 1960).

The first national bird in the world was the bald eagle (since 1782 the national symbol of the United States), the second - a subspecies of the Javanese peacock Pavo muticus spicifer (since 1940 the national symbol of Myanmar), the third - the motley pheasant (since 1947 the national symbol of Japan). Subsequently, some other birds were recognized as national.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

What is three times more dangerous than war?

Work is a much bigger killer than alcohol, drugs and war.

Every year, two million people die from industrial accidents and occupational diseases - as opposed to only 650 who die in military conflicts.

In general, the most dangerous occupations in the world are agriculture, mining and construction. According to the US Bureau of Labor Statistics, in 2000 alone, 5915 people died at their workplaces - including those who had a heart attack right at their desks.

The lumberjack profession was recognized as the most dangerous - 122 deaths per 100 workers. Fishing fleet sailors came in second place, civil aviation pilots ranked third with a mortality rate of 101 per 100 thousand. We want to reassure you right away: almost all pilots who died in air crashes were sitting at the controls of small aircraft, not passenger airliners.

Steel construction workers and miners ranked fourth and fifth, respectively, although the death rate in both occupations was less than half that of lumberjacks.

Regardless of occupation, the third most common cause of death at work was homicide, with 677 deaths. In 2000, fifty police officers were killed. But sellers - as many as 205 people!

The second place among the causes of death was taken by falls from a height - 12% of the total. The main victims here are roofers and high-rise installers.

Road traffic accidents were the most common cause of death at work, accounting for 23% of the total. As it turns out, even police officers are more likely to die at the wheel than at the hands of a killer.

The most dangerous of the rare professions is considered to be the work of a crab catcher in the Bering Sea.

The risk of death can be calculated using a special scale invented by Frank Duckworth, editor of the Journal of the Royal Statistical Society of Great Britain. The Duckworth scale measures the likelihood of death as a result of a particular activity. The safest type of activity is rated a zero eight, which will undoubtedly lead to death.

For example, "Russian roulette" in terms of risk gives 7,2 points. Twenty years of rock climbing is 6,3. The chance of dying at the hands of an assassin is 4,6. A 160-mile car trip driven by a sober, middle-aged driver scores 1,9, slightly more risky than death from an asteroid impact (1,6).

On the Duckworth scale, 5,5 is considered especially dangerous. For men, this is the risk of death in a traffic accident or an accidental fall from a height for both sexes - the risk of dying while cleaning housework, washing dishes or just walking down the street.

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Compressed air energy storage systems are nothing new. The problem was their relatively low energy efficiency, which Chinese scientists successfully solved. Based on the development in Hebei Province, the world's most advanced 100 MW air-compression energy storage system has been created, tested and will be put into commercial operation by the end of the year.

The world's first CAES (compressed air energy storage system) project on a utility scale was implemented in Germany in 1978. The plant is still in operation today, providing an output power of 290 MW. CAES equipment pumps atmospheric air into voids in the ground, compressing the air to a pressure of about 140 atmospheres. The efficiency of the German installation is 40%, which is significantly lower than pumped storage power plants with energy reserves in the process of pumping water masses to a great height (efficiency up to 75%) and battery storage, the efficiency of which reaches 90%, but is realized in the course of the most serious financial injections.

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