How many continents are on our planet? Detailed answer

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How many continents are on our planet? Detailed answer

Big encyclopedia for children and adults

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How many continents are on our planet?

The division into continents in geographical science is not universal and conditional. In English-speaking countries, former English colonies and China, they teach that there are seven continents: Europe, Asia, Africa, North America, South America, Australia and Antarctica. In the countries of the former USSR and Eastern Europe, the whole of Eurasia is usually considered a continent, and in the states of Western Europe and Latin America, Asia and Europe are separated, but America is singled out as a single continent. In the extreme version, due to the proclamation of Afro-Eurasia, there are only four continents, but such a system is not taught anywhere as the main one.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Can butterflies remember events that happened to them in the caterpillar stage?

For a long time, scientists did not know whether insects with full transformation could retain any memories from past stages. In 2008, scientists at Georgetown University conducted an experiment with hawk moths - they hit the caterpillars with an electric discharge when a certain smell appeared. When the caterpillars became butterflies, they avoided this smell. A temporal distinction was also established - if the caterpillars were trained at the age of up to three weeks, in the butterfly stage they did not shun the smell. The researchers concluded that butterflies retain memory only if the caterpillar's nervous system reaches a certain maturity.

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Food of the future 20.05.2019

The development of artificial intelligence will allow everyone to make an individual diet.

British analysts, together with futurologists, conducted a study and found out what the human diet will look like by 2025, 2050 and 2169. Experts believe that the development of artificial intelligence will allow everyone to create an individual diet and receive nutrients in the form of patches and tablets.

The market for alternative protein will grow by 25% - it will be taken from insects. Cricket flour and grasshopper pasta will become commonplace, while wheat, corn, rice and soy will be replaced by moringa and Bambara peanuts. Seaweed milk will become a bestseller.

After 30 years, fish lovers will have to wean themselves from cod, salmon, haddock, tuna and shrimp and switch to jellyfish, because they breed well in warm waters in the absence of predators.

By 2169, people will store information about their nutritional needs on microchips implanted in the body. If necessary, the chip will send a signal to the supermarket, and then the drone or robot will deliver the necessary products.

“There are more and more people, and when choosing products they are increasingly guided by considerations of health, environmental protection and animal protection. This means that the modern food industry cannot meet the needs of a population that will soon reach 9 billion,” the researchers note.

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