|
Arabic
Bengali
Chinese
English
French
German
Hebrew
Hindi
Italian
Japanese
Korean
Malay
Polish
Portuguese
Spanish
Turkish
Ukrainian
Vietnamese|
BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
What is the best floor to drop a cat from? Detailed answer
Directory / Big encyclopedia. Questions for quiz and self-education Did you know? What is the best floor to drop a cat from? With anyone - if only he was above the seventh. How great the height will be, it does not matter at all - the main thing is that the animal has enough oxygen. Like most small animals, cats have a non-lethal terminal speed - in the case of a cat, this is about 100 km / h. It is enough for a cat to relax, as it immediately orients itself, spreads out in the air and parachutes like a flying squirrel. Terminal velocity is the point at which the weight of the body becomes equal to the air resistance and the body stops accelerating. In humans, this figure is 195 km / h and is reached at an altitude of about 550 m. There are cases when cats fell from the thirtieth floor or higher without any harm to health. One, for example, survived flying forty-six floors. There is even an officially registered fact when a poor animal was deliberately thrown out of a Cessna plane at an altitude of 244 m - and the cat remained alive. In 1987, the Journal of the American Veterinary Medical Association published an article analyzing 132 cases of cat falls from New York high-rise windows. On average, cats fell from 5,5 floors. Ninety percent of them survived, although many received fairly serious injuries. The results of the analysis show that the number and severity of injuries increased in proportion to the number of floors - up to the seventh. Above the seventh floor, the average amount of damage dropped sharply. In other words, the longer the cat falls, the more chances it has. The most famous examples of human free fall are two cases. 10-year-old flight attendant Vesna Vulvovich fell from a height of 600 meters after a Croatian terrorist bombed a Yugoslav passenger plane in 1972. Nicholas Elkiemaid, RAF Senior Gunnery Sergeant, jumped out of a burning Lancaster in 1944 and flew 5800 meters with an unopened parachute. Vesna broke both legs and injured her spine, but remained alive due to the fact that the toilet stall, to which the flight attendant's chair was screwed, took the impact on the ground. The fall of Elkimaid was softened by a tree and a snowdrift. Surprisingly, everything went without a single fracture. When the pilot was found, he calmly sat in the snow and smoked. Author: John Lloyd, John Mitchinson
Are the temperatures the same at the North and South Poles? For most of us, the North and South Pole regions are mysterious. We just have vague ideas about what they represent and think that they are probably very similar to each other. But, surprisingly, there are more differences between the Antarctic (South Pole region) and the Arctic (North Pole region) than similarities. The South Pole region is mostly occupied by a continent called Antarctica. This ice and snow covered continent is almost twice the size of the United States. Conversely, the area of the North Pole is occupied by the Arctic Ocean, which washes the shores of North America, Europe and Asia. Another difference is that people, animals and plants gradually moved north, towards the North Pole, gradually adapting to polar conditions. And in the region of the South Pole, separated by hundreds of kilometers of the surface of the oceans from the rest of the continents, with the exception of South America, neither animals nor humans can exist. Of the vegetation, only lichens, mosses, herbaceous plants and some types of flowers are represented. By the way, one of the reasons why the penguins successfully mastered this area is the absence of enemies here. What is the climate like in Antarctica? Its two main characteristics should be noted: low temperatures even in summer and the strongest winds in the world. And in the region of the North Pole, air currents, rising from the surface of the surrounding ocean, slightly increase the temperature. In Antarctica, where the main part of the continent is covered with ice, cold air masses with high pressure are formed. Therefore, the climate here is more severe than at the North Pole. Even during the summer months, the average temperature in Antarctica is below freezing! On some days the temperature can rise above 4 °C, but in the middle of summer there are days with temperatures below zero. In winter, the average temperature in the area of the South Pole is -23-35 °C.
▪ Why is there no water in the desert? ▪ When were the first fertilizers applied? ▪ Why is the rainbow shaped like an arc?
Machine for thinning flowers in gardens
02.05.2024 Advanced Infrared Microscope
02.05.2024 Air trap for insects
01.05.2024
▪ section of the site Alternative energy sources. Article selection ▪ article Four hundred comparatively honest ways of taking money. Popular expression ▪ article What phenomenon of the human psyche causes the crossing of doorways? Detailed answer ▪ Sequoia article. Nature miracle ▪ article Chameleon flower. Focus secret
Home page | Library | Articles | Website map | Site Reviews
www.diagram.com.ua |
Random interesting fact from the Great Encyclopedia:
See other articles Section 
Latest news of science and technology, new electronics:
All languages of this page