BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
What was unique about Charles Creighton and James Hargis' road trip across the US? Detailed answer Directory / Big encyclopedia. Questions for quiz and self-education Did you know? What was unique about Charles Creighton and James Hargis' road trip across the US? In 1930, Americans Charles Creighton and James Hargis traveled by car from New York to Los Angeles and back. The highlight was that they covered the entire path (more than 11 thousand kilometers) in reverse. Authors: Jimmy Wales, Larry Sanger Random interesting fact from the Great Encyclopedia: Do any birds hibernate in the winter? When the winter cold comes, we can close ourselves in our house, light a fire in the fireplace and sit by it until we feel like going outside. Although we are warm-blooded animals, we cannot hibernate. And if a person were capable of this, do you think he could not live longer, surviving the cold in this way? Birds, alas, also cannot hibernate. But still they are able to tolerate very low temperatures. Even a small canary, which may live in your cage, can tolerate outdoor temperatures down to minus forty-five degrees Celsius, if, of course, it has something to peck in sufficient quantities. Birds that are able to get their own food and do not fly away to warm countries for the winter do not need hibernation. Falling into hibernation is determined by a special temperature-regulatory center in the brain. The body reacts to cold by sending the blood in the skin to the internal organs of the body, ruffling the fur or feathers to increase the heat-retaining layer, causing the animals to shiver, which also contributes to warmth. Hibernating animals simply "turn off" this thermostat in their bodies when it's time to fall asleep for the winter. They become almost cold-blooded animals. This process is caused by a decrease in external temperature, a lack of food, a shortening of the day, and other conditions. When an animal goes into hibernation, its temperature regulator begins to falter: when the body temperature drops, it will not respond to it in the same way as in the normal state, with an increase in temperature. Instead, body temperature is brought into line with air temperature. Breathing becomes slow and irregular, like the heartbeat itself, and various nervous reflexes cease to function altogether. If the air temperature drops below zero, some hibernating animals begin to breathe faster, and the body generates a little more heat. Some of them wake up. Those that do not react at all to a sharp drop in temperature can freeze to death.
Test your knowledge! Did you know... ▪ What does a person need to be happy? ▪ How many words do Eskimos have for snow? ▪ What does the brand of soda water Boga, popular in Tunisia, have to do with Russia? See other articles Section Big encyclopedia. Questions for quiz and self-education. Read and write useful comments on this article. Latest news of science and technology, new electronics: A New Way to Control and Manipulate Optical Signals
05.05.2024 Primium Seneca keyboard
05.05.2024 The world's tallest astronomical observatory opened
04.05.2024
Other interesting news: ▪ Panasonic controllers with 40nm integrated ReRAM ▪ Candies that restore tooth enamel News feed of science and technology, new electronics
Interesting materials of the Free Technical Library: ▪ site section Lighting. Article selection ▪ article Stability of the functioning of economic objects and their life support. Basics of safe life ▪ article Which birds fly the fastest? Detailed answer ▪ head injury article. Health care ▪ article Jump over the stick. Focus Secret
Leave your comment on this article: All languages of this page Home page | Library | Articles | Website map | Site Reviews www.diagram.com.ua |