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First aid for a child. Accidents

Fundamentals of First Aid / First aid for a child. Accidents

Fundamentals of First Aid (OPMP)

Fundamentals of first aid. First aid for a child. Accidents:



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Fundamentals of First Aid (OPMP)



Latest news of science and technology, new electronics:

Blinking of the magician and his audience 19.05.2024

Magic and illusions have always captured the attention of the public, but what happens behind the scenes of the magician and in the brains of his audience? Scientists from the UK decided to solve this mystery by conducting a new study involving ten illusionists of varying experience. Illusionists, some of whom had been practicing magic for more than half a century, others for only six months, were invited to demonstrate the same trick - the popular coin trick. Recordings of their performances during training and on stage showed that each of them began to blink significantly more often at the moment of performing the trick. The study's findings indicate that magicians' blink rate may be related to unconscious aspects of their performance. At the same time, as scientists have found, spectators also begin to blink more often, following the movements of the illusionist. This observation supports the idea that magicians may be catalysts for blinking in audiences. Additional research has shown that magicians blink more often during ... >>

Ultrasonic coffee machine 19.05.2024

Iced coffee has become an integral part of coffee culture in recent years. Therefore, engineers from the University of New South Wales decided to improve its preparation. They have developed an ultrasonic coffee machine that reduces the cold brew time for ground coffee beans from 12-24 hours to significantly less time. Iced coffee, or "Cold brew", is popular due to its smoothness, low acidity and low bitterness. It is prepared by steeping ground coffee in cold water for a long time. Unlike traditional hot brewing, which often imparts bitterness to coffee, cold brewing extracts more delicate and complex flavors from the coffee beans. The innovative system, presented by a team of engineers, introduces ultrasonic technology into the coffee preparation process. The system uses ultrasonic waves to speed up the process of extracting oils, flavor and aroma from ground coffee. This allows you to significantly reduce the time ... >>

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 ... >>

Random news from the Archive

US Air Force space drone 28.12.2013

The prototype of a promising orbital unmanned aerial vehicle X-37B, launched by the Americans into orbit, has spent more than a year in space.

For what purposes the drone is in orbit is unknown. Data about its payload is classified. The US Air Force, involved in this project, does not name the date of return of the device. However, according to, the military announced that upon return, the craft would likely land at NASA's Cape Canaveral Center in Florida.

The X-37B unmanned aerial vehicle entered Earth orbit on December 11 last year. One of the goals that may be pursued by the US Air Force and the American concern Boeing, which created the drone, is to find out whether devices of this class are suitable for repeated use. This is necessary to prove the possibility of a relatively cheap launch of various payloads into the Earth's orbit.

Previously, X-37B drones have completed two flights in near-Earth orbit. One lasted from April 22 to December 3, 2010, and the second lasted from March 5, 2011 to June 16, 2012. Test flights of two drones were considered successful. In the process of launching the devices, the heat resistance of the coating of their body was checked. The controllability of the X-37B was also tested when flying at hypersonic speed at the time of entry into the atmosphere from space.

The X-37B has a wingspan of 4,5 m and a length of 8,8 m. The take-off weight of the unmanned vehicle, capable of landing like an airplane upon returning to Earth, is approximately 5 tons. in orbit is 270 days.

There are opinions that such drones will perform reconnaissance missions in the future. Also, some analysts suggest, due to the covert nature of the program, that the X-37B may be a harbinger of an orbital weapon capable of dropping bombs or incapacitating hostile satellites. Although the Pentagon has repeatedly stated that the space plane is only a "testing ground" for new technologies.

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