Who holds the record for the deepest dive among marine mammals? Detailed answer

Free technical library

BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

Who holds the record for the deepest dive among marine mammals? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Comments on the article

Did you know?

Who holds the record for the deepest dive among marine mammals?

The diving champion among mammals is the sperm whale.

In pursuit of their favorite food - deep-sea (very large) squid - the sperm whale is able to dive into the ocean depths for 2,5 kilometers. In this case, the sperm whale has to hold its breath for 1,5 hours and withstand a pressure of 250 atmospheres.

More than once in the waters of the Atlantic, at a depth of more than 2 kilometers, sperm whales cut off telephone and telegraph cables (probably "believing" that these were cephalopod tentacles) and, entangled in them, died. Whalers say that tentacles of deep-sea squid up to 12 meters long were found in the stomachs of captured sperm whales.

However, hunting them is not always safe. On the body of sperm whales, there are often deep scars from the beaks of squids and their tentacles with horny suckers.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

What do white blood cells do?

As you know, blood, so necessary for life, is not such a simple thing. Many different substances do their jobs and are important in their own way. Although the red cells in the blood are much more numerous and give the blood its color, white blood cells also play a critical role. White blood cells are called leukocytes.

Most normal white blood cells are granular cells. These cells travel through the bloodstream to areas where there is an accumulation of microbes or damaged tissues. Some of these cells, called neutrophilic leukocytes, coat bacteria and destroy them. They also secrete substances that break down and soften dead tissue and form pus.

Another kind of white blood cells is called lymphocytes. The number of lymphocytes often increases in those parts of the body where the infection continues for a relatively long time. This is part of the body's effort to fight infection, so you can be sure they're doing a very important job.

There is another type of white blood cells called monocytes. Together with other cells in tissues, these cells have the ability to collect dead matter particles as well as coat dirt particles and prevent them from coming into contact with healthy tissue cells. By the way, although white blood cells are necessary for the body, when there are too many of them, this is also not very good.

When too many white cells are produced and they don't become the healthy, active cells that are needed, the condition is called leukemia, or blood cancer. Therefore, the composition of the blood, as a chemical formula, must have the right amount of all components - red cells, white cells, proteins, salts, carbohydrates, fats, and so on.

Test your knowledge! Did you know...

▪ How does a fly manage to walk on the ceiling?

▪ Is it possible to fly far using only muscle strength?

▪ What spacecraft did the newspapers call the upsnik?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

Moving sidewalks for cities 25.11.2016

Travolators or moving sidewalks can hardly be called an innovation. The first "moving sidewalk" was shown back in 1893 in Chicago (USA) at the World's Columbian Exposition, and in 1900 it premiered at the World's Fair in Paris. Travelators were already seen as the transport of the future, and H.G. Wells used them to describe London in the 1890nd century in A Tale of the Days to Come and When the Sleeper Awakes, written in the XNUMXs.

Despite the optimism of a century ago and the development of technology, travelators have remained a niche vehicle used in airports, shopping centers, museums and zoos. The use of travelator as public transport is limited to underground metro stations in different cities of the world.

Recently, employees of the Federal Polytechnic School of Lausanne (Switzerland) again returned to the topic of the travelator as urban transport. Using a mathematical model, they showed that in medium-sized European cities, moving sidewalks were able to carry 7000 passengers per hour on each lane more efficiently than buses. As a model, the researchers took Geneva, completely devoid of cars, in which passengers use the metro, trams, taxis, bicycles or city funiculars.

It turned out that the most efficient configuration of a moving sidewalk in a city of this size is a small circle around the city center, in which there are no cars. The length of the sidewalk network of 47 links and 10 exits will be 32 km on the main roads. In addition, the system provides 37 intersections connecting "slow" travelators (speed up to 15 km / h) with high-speed "highways" using bridges and tunnels in order not to collide with conventional transport.

Other interesting news:

▪ External drive Western Digital My Book Duo 44 TB

▪ Blue Origin space tourism ship

▪ Firefly Shine Synchronization

▪ Genes for homosexuality found

▪ Apple MacBook Pro is the best Windows laptop

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ site section Power supply. Article selection

▪ article A parable by the town. Popular expression

▪ article Where and when is the Day of Culture of Extraterrestrial Civilizations celebrated? Detailed answer

▪ article Viburnum vulgaris. Legends, cultivation, methods of application

▪ article Car amplifier on the TDA2025 chip. Encyclopedia of radio electronics and electrical engineering

▪ article French ball drop. Focus Secret

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews