How are icebergs born and how high can they reach? Detailed answer

Free technical library

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

How are icebergs born and how high can they reach? Detailed answer

Big encyclopedia for children and adults

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

Comments on the article

Did you know?

How are icebergs born and how high can they reach?

Icebergs are large blocks (mountains) of glacial ice that float or sit aground in the ocean, sea or glacial lake.

Icebergs are formed as a result of breaking off (under the influence of hydrostatic water pressure, tides, currents and wind) the ends of glaciers descending into the water. The main "suppliers" of icebergs, and the largest ones, are the ice shelves of Antarctica and the northern islands of the Canadian Arctic Archipelago, as well as the Greenland ice cap.

Depending on the density of ice and water, 1/10 to 1/6 of the volume of an iceberg is on the surface. But even this above-water part has an average height of 70 meters (Arctic) to 100 meters (Antarctic). Under the influence of uneven melting, icebergs capsize from time to time.

Greenland icebergs are carried by currents up to 40-50 degrees north latitude, and in some cases even further south. Antarctic icebergs reach 45-60 degrees south latitude, in 1894 they were observed even in the tropical zone.

Collision with icebergs has been the cause of the death of many ships, the most famous of which is the passenger liner Titanic, which sank in 1912.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

Why do frogs blink frequently while eating?

Frogs cannot effectively chew their food and use their tongue to force it down their throats. Instead, they push food with their eyes, pulling them into the skull with special muscles - which is why frogs often blink while eating.

Test your knowledge! Did you know...

▪ Where on Earth are the highest tides and tides?

▪ How many times larger is a standard Japanese keyboard than a European one?

▪ What insects are able to form a raft on the water with their bodies?

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

Danger-signaling plant genes found 23.03.2020

Scientists from the Salk Institute for Biological Research (Salk Institute) have found the exact location of the genes, whose purpose is to signal danger.

The plant hormone, jasmonic acid or jasmonate, is responsible for the plant's response to external irritation: insect attack, fungal infection, drought, heat or cold. By examining plant cells after exposure to jasmonic acid, scientists have determined which genes are responsible for the plant's response to danger.

The guinea pig Talya became the test subject: the genome of this representative of the mustard family is well studied. The results of studies of the rucifera can be extrapolated, since jasmonic acid is found among representatives of the entire plant kingdom. The seeds germinated in the dark were treated with jasmonate, after which the researchers extracted DNA and proteins from the cells. To determine the exact location of the genes that regulate the plant's behavior in times of danger, the scientists used specific antibodies against the proteins of interest.

"The aim of our study was to see how plants process information from the environment, how this information affects their growth and development," - shared Professor Joseph Ecker, co-author of the report, a researcher at the Howard Hughes Medical Institute, - As a result, we have identified genes responsible for for the response to jasmonic acid, and found sites involved in cellular cross-communication with other plants. This will allow breeders to develop crops that are more resistant to harsh conditions."

Other interesting news:

▪ Happiness from altruism is short-lived

▪ Amazing properties of grapes in the microwave

▪ Nikon Coolpix S810c compact camera on Android

▪ Reduction of emissions from metallurgical enterprises

▪ Walruses do not have enough space in the sea

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Funny puzzles. Article selection

▪ Article Around treason, and cowardice, and deceit. Popular expression

▪ article In which country should each family have a unique last name? Detailed answer

▪ article Gas electric welder. Standard instruction on labor protection

▪ Lakotkan article. Encyclopedia of radio electronics and electrical engineering

▪ article Heterodyne receiver for a range of 20 m. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

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