BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
In which country are souvenirs with the slogan kangaroos here not popular? Detailed answer Directory / Big encyclopedia. Questions for quiz and self-education Did you know? In which country are souvenirs with the slogan No kangaroos here? Tourists often confuse Austria with Australia - therefore, the slogan "There are no kangaroos in Austria" is very popular in Austria, applied to street signs and souvenirs. However, this confusion also occurs at a high level. Once, at a UN meeting, Austria put forward its candidacy for elections to the Security Council. One of the votes was given in favor of Australia, although it was not on the list of candidates at all. And former US President George W. Bush thanked the Australian Prime Minister in 2007 for visiting his "Austrian" contingent in Iraq. Authors: Jimmy Wales, Larry Sanger Random interesting fact from the Great Encyclopedia: What causes the heart rate to change? Each of the human heart beats lasts approximately 0,8 seconds. During the day, it makes about 100 strokes, resting after each equal interval of time. For a year, somewhere around 000 strokes are obtained. The beating of the heart is the rhythmic contraction of the heart muscle, causing blood to circulate throughout the body. Therefore, the heart rate (and pulse beats) depends on the body's need for blood supply. A change in the heart rate can most often be observed during heavy physical work. Here's how it goes. During the work of the muscles of our body, carbon dioxide is formed. Its molecules are transported by blood within 10 seconds to one of the four chambers of the heart, called the right atrium, which contains cells that respond to the presence of this acid. They adjust the heart rate to the amount of carbon dioxide in the blood. When the muscles of the body stop working, the amount of carbon dioxide in the blood decreases, and, accordingly, the heart beats more slowly. The activity of the heart is connected with the needs of our whole organism. Mental excitement stimulates the nervous system, and this also makes our heart beat faster. When we are depressed or fearful, other nerves are stimulated, which causes the heart to beat more slowly. An ordinary person cannot cause a rapid heartbeat simply by an effort of will, but there were people who had the ability to do this. One person could even make the heart stop and “freeze”, so that those around them began to think that he was really dead. But then he made his heart beat like before again.
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