What representatives of the animal world, besides humans and dolphins, have unique names? Detailed answer

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What representatives of the animal world, besides humans and dolphins, have unique names? Detailed answer

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What representatives of the animal world, besides humans and dolphins, have unique names?

In addition to humans and dolphins, parrots have unique names in the animal kingdom. Chicks receive names, which consist of a special way of chirping, from their parents. Each such signature contains not only the unique call sign of a particular bird, but also reflects its gender and belonging to a particular family of parrots.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

What is color?

Passing a beam of light through a glass prism, Isaac Newton proved that sunlight is made up of different colors. Refracted in a prism, it forms a spectrum.

For most of us, the spectrum consists of 6 or 7 colors, but devices emit more than 100 shades. White is made up of three primary colors called "primary colors". These are orange-red, green and violet-blue.

The spectrum contains three more mixed colors that are visible to the naked eye. They are called "secondary colors". These are greenish blue, yellow and purplish red.

Secondary colors can be obtained by mixing other shades.

The colors correspond to the wavelengths that the human eye perceives. Insects and animals perceive other wavelengths and see other colors.

Light or color waves have a very short wavelength.

To give color to the paint, dyes are added that do not correspond to the colors of light. The secondary colors of the light correspond to the primary colors in the paint. That is, in the paint, the primary colors are yellow, greenish-blue, and red, and the secondary colors are orange-red, green, and violet-blue.

Hue is a color without the addition of black or white paint, such as yellow, red, blue, green. When combined with white and other shades, a halftone is obtained, such as pink and ivory. When you combine a pure hue, black and white, you get a tone. It is tan, beige, grey.

Red paint in a can looks black. Where there are no light rays, there is no color. In a dark room, we cannot see or distinguish colors because there are none. The color of an object depends on the material from which the object is made and its lighting. The orange-red sweater looks like this because the dye used to dye the wool reflects the orange-red part of the light rays and absorbs the violet-blue and green parts of the spectrum.

Test your knowledge! Did you know...

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Gadget for posture correction 28.11.2023

Engineers from Japan have created an innovative wearable device for balance training, which is a kind of “pneumatic braces”. The development is being carried out by scientists from Tokyo University of Science with the aim of helping older people maintain correct posture and improve balance, reducing the risk of falls and related injuries.

A new wearable device presented by Japanese engineers holds promise for effective balance training, which could be very useful for maintaining physical activity and reducing the risk of injury, especially among the elderly population.

The wearable device uses two pneumatic artificial muscles to create unexpected disturbances. These muscles, similar to braces, can be adjusted by stretching or contracting, changing the air pressure inside. A special program developed by the researchers controls the valves associated with the compressed gas cylinder, creating a force directed towards the user.

To test the effectiveness of the device, testing was carried out on 18 healthy men. Participants were randomly divided into two groups: experimental and control. Both groups were assessed for balance before starting the experiment. Participants in the experimental group then exercised using the device, while the control group performed exercises without using it. After training, the balance ability assessment was repeated.

The measurement results showed that participants in the experimental group after training were better able to maintain balance when exposed to external factors. This result is important given that maintaining balance becomes difficult with age due to various factors such as muscle weakness, changes in vision and sensory input.

Researchers believe that wearable device use and exercise training can effectively prevent falls and fall-related injuries in older adults. In addition, the device can be useful for training athletes and rehabilitation after injuries.

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