Which animal has the most unusual pupil shape? Detailed answer

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

Which animal has the most unusual pupil shape? Detailed answer

Big encyclopedia for children and adults

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

Did you know?

Which animal has the most unusual pupil shape?

Goats, sheep, mongooses and octopuses have horizontally elongated, almost rectangular pupils. In some rays, the shape of the pupils resembles a crescent. The pupils of some geckos consist of vertically connected thickenings. Perhaps the most original pupils in cuttlefish - they resemble a smoothly curved letter W.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Why does a tree shed its leaves in autumn?

In our latitudes, the growing season ends in autumn, i.e., the time of tree growth. With a decrease in daylight hours, the process of photosynthesis stops (the formation of glucose and other nutrients in chloroplasts from water and carbon dioxide under the action of sunlight). Chlorophyll grains are destroyed, the leaves gradually turn from green to yellow. All life processes in the tree slow down, in particular, the process of water absorption by the root system and its evaporation from the surface of the leaves slows down, and the latter die off.

Fallen leaves protect the soil under the tree, and, consequently, the roots from drying out, and in frosty winters from freezing.

Test your knowledge! Did you know...

▪ Who are Whigs?

▪ What do chameleons do?

▪ How is the German attack on the USSR connected with the excavations of the tomb of Tamerlane?

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

Europe's oldest silk 10.09.2008

Recently, during the laying of a gas pipeline in the north-east of Germany, a Bronze Age burial 3100-3300 years old was found.

The skeleton of a young woman with rich bronze ornaments was found in the sarcophagus. Her clothes were almost completely rotted, but over the millennia, the mineral corrosion products of bronze soaked the fabrics so that they were deposited on already decayed threads, exactly repeating their microscopic structure. Electron microscope examination showed that the shroud was apparently wool, but the thin veil on the head turned out to be silk.

In China, surviving samples of silk dating back about 5000 years are known, but until now, the oldest European silk was considered to be found earlier also in Germany. It is approximately 2600 years old, so the new find is XNUMX years older. According to the structural features of the threads, archaeologists suggested that silk was produced in Greece. They bred a different kind of silkworm and processed silk differently than in China.

Other interesting news:

▪ The secret of ancient wine

▪ SSD 7,68 TB from Kingston Technology

▪ Quiet aircraft landing gear

▪ Lightning chases ships

▪ Exploration of french fries in outer space

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Reference materials. Article selection

▪ article by Haroun al-Rashid. Popular expression

▪ article How did Louis Pasteur's bacterial theory affect human lifespan? Detailed answer

▪ article Snowcards for sports and recreation. Personal transport

▪ article Frequency code loader in the UHF modulator based on the TA1243CF chip. Encyclopedia of radio electronics and electrical engineering

▪ article Instant repair of remote control buttons. 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