How long does it take for a dolphin to renew its top layer of skin? Detailed answer

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

How long does it take for a dolphin to renew its top layer of skin? Detailed answer

Big encyclopedia for children and adults

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

Did you know?

How long does it take for a dolphin to renew its top layer of skin?

The skin of the dolphin provides very little friction with the water. For greater streamlining, the flakes of the upper layer of the skin are renewed on average every two hours.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Who was the first person to walk on the surface of the moon?

In 1966, for the first time in the history of mankind, the Luna-9 automatic station gently descended to the lunar surface in the Ocean of Storms (this is on the visible side of the Moon), which transmitted an image of the lunar landscape to Earth.

On July 21, 1969, the landing cabin "Eagle" ("Eagle") of the American spacecraft "Apollo 11" descended on the Moon in the Sea of Tranquility, and the first people, Neil Armstrong and Edwin Aldrin, came to the surface of the Moon. They installed several scientific instruments there, including seismographs (devices that record tremors, vibrations of the lunar soil), took samples of lunar rocks and returned to the ship, which was in lunar orbit. There, the third American astronaut, Michael Collins, was waiting for them.

In the next three years, five more American expeditions landed on the Moon. Seismographs installed on the lunar surface recorded weak moonquakes, some of which are caused by the fall of meteorites, and others by seismic processes occurring in the bowels of the moon.

Test your knowledge! Did you know...

▪ Who took the first photo?

▪ Can the Earth encounter a comet?

▪ Why are the most reliable and liquid stocks called blue chips?

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:

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

Self-healing chips 28.09.2006

A group of American scientists began a three-year project to research the technology of creating microchips that can independently recover from failures, reports Extreme Tech.

The start of work on the project was announced last week at a conference on design automation, held in San Francisco, representatives of the corporation Semiconductor Research, US National Science Foundation and Michigan State University.

It is supposed to build a chip design technology that will more efficiently search for faulty parts of the chip, transfer computing functions from non-working parts to working ones, and then correct the problems that have arisen and return the repaired section to operation. In this case, the microchip will be able to recover through the use of online software and its own components.

Currently, semiconductor redundancy is used to find and diagnose problems in semiconductors, which requires significant additional costs, performance degradation and an increase in chip size. Reliability modeling of complex systems is becoming increasingly complex as it requires consideration of more and more diverse factors, from defects in silicon wires to flaws in software applications.

The study will develop both a direct and intuitive error correction model, and create fast and accurate ways to analyze infrastructure reliability.

Other interesting news:

▪ Drone vs Fighter

▪ Solar panels on indium phosphide

▪ New infrared emitting LEDs up to 180 MW/ster

▪ Electric price tag

▪ Night milk is healing

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Sites of amateur radio equipment. Article selection

▪ article And pale death looks at everyone. Popular expression

▪ article Where and when was the statue of the Virgin Mary declared a witch and burned? Detailed answer

▪ article Hemoptysis, or pulmonary hemorrhage. Health care

▪ article Refinement of the LED lamp. Encyclopedia of radio electronics and electrical engineering

▪ article Stable crystal oscillator operating in a wide range of supply voltages. 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