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Big encyclopedia. Questions for quiz and self-education. Interesting Facts

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

The "Big Encyclopedia for Children and Adults" section contains fascinating articles that will broaden your horizons and reveal interesting facts. These informative articles will be an excellent source of information for quizzes, self-education and just curious reading. In our encyclopedia you will find many fascinating facts that will allow you to expand your knowledge and surprise your friends and family.

Simple answers to complex questions, 5500 articles.

 Random fun fact:

Where and when did the children organize a series of demonstrations against the increase in the price of sweets?

After the Second World War, fixed military prices for consumer goods were unfrozen in Canada, which led to inflation. In the spring of 1947, the price of a chocolate bar in stores jumped from 5 cents to 8 cents at once, which led to mass discontent among children. First, a few schoolchildren staged a protest outside a store in a small town in the east of the country, and then the baton of boycotts and demonstrations was picked up by hundreds and thousands of children across Canada. The sweets manufacturers responded with newspaper articles claiming that the actions were the work of the communists, who had recruited child leaders to wreak havoc in society. The calculation turned out to be correct: if at first adults supported the initiatives of children, since they themselves were dissatisfied with inflation, then after publications in the media, parents and teachers began to prohibit youth from participating in demonstrations.

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Latest news of science and technology, new electronics:

The speech of sperm whales is similar to that of humans 18.05.2024

In the world of the ocean, where the mysterious and unknown coexists with the studied, sperm whales, with their huge brains, are of particular interest to science. Researchers, working with a huge array of audio recordings collected during the Dominica Sperm Whale Project (DSWP) - more than 8000 recordings, seek to unravel the secrets of their communication and understand the structure and complexity of the language of these mysterious creatures. By studying in detail the recordings of 60 sperm whales in the eastern Caribbean, scientists have revealed surprising features of their communication, revealing the complexity of their language. "Our observations indicate that these whales have a highly developed combinatorial communication system, including rubato and ornaments, which indicates their ability to quickly adapt and vary during communication. Despite significant differences in evolution, sperm whales have elements in their communication that are characteristic of human communication," says Shane Gero, a biologist at Carleton University and director of the CETI project. Issl ... >>

Electron spin for quantum information transfer 18.05.2024

The transfer of quantum information remains one of the key tasks of modern science. Recent advances in the use of electron spin to expand the capabilities of information transfer in quantum systems have become very important. Researchers at Lawrence Berkeley National Laboratory are pushing the frontiers of quantum information science by experimenting with the possibilities of electron spin. Electron spin, a natural quantum bit, is a potentially powerful means for storing and transmitting information in quantum systems. Magnon wave packets, collective excitations of electron spin, have revealed their potential to transmit quantum information over significant distances. The work of Berkeley Lab researchers has revolutionized the way such excitations propagate in antiferromagnets, opening up new prospects for quantum technologies. Using pairs of laser pulses, scientists disrupted antiferromagnetic order in one place and simultaneously studied it in another, creating ... >>

Sound-absorbing silk 17.05.2024

In a world where noise is becoming increasingly intrusive, the emergence of innovative materials that can reduce its impact is of great interest. MIT researchers have unveiled a new sound-absorbing silk fabric that promises to revolutionize quiet spaces. The Massachusetts Institute of Technology (MIT) has made significant breakthroughs in the field of sound absorption. Researchers have developed a special silk fabric that can effectively absorb sound and create cozy, quiet environments. The fabric, thinner than a human hair, contains a unique vibrating fiber that is activated when voltage is applied to it. This feature allows the fabric to be used to suppress sound waves in two different ways. The first method uses fabric vibrations to generate sound waves that cover and cancel out unwanted noise, similar to noise-canceling headphones. This p ... >>

Random news from the Archive

Genius Cam Mouse with built-in camera 25.08.2013

The Genius company announced the start of sales of the Cam Mouse computer mouse, the peculiarity of which is the presence of a camera built into the base.

The novelty can be used both as a traditional manipulator and as a mini-camera for taking photos, transferring videos or scanning QR codes. Switching between the two modes of operation is carried out by shifting the protective cover that covers the lens.

Cam Mouse is equipped with a Blue Eye sensor with a resolution of 1200 dpi (dots per inch) and a 2-megapixel matrix. 720p video recording is supported. Footage can be quickly posted to social networking sites. A wired USB interface is used to connect to a computer.

You can buy Cam Mouse for an estimated price of $30.

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