Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library

Free library / Directory / Fundamentals of First Aid


Fundamentals of First Aid / Bleeding

Fundamentals of First Aid (OPMP)

Fundamentals of first aid. Bleeding:



See other articles Section Fundamentals of First Aid:

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

Electronic blackboard 14.07.2004

Ten schools in Berlin are testing electronic blackboards.

This is a white board with a pressure sensitive surface. On it, as on a screen, the projector throws the image from the computer monitor to which the board is connected by a wire. They write and draw on the surface of the board with a special electronic pencil, they also erase and change what is written.

If a student at the blackboard solves mathematical examples, the board (or rather, the computer that controls it) can be asked to check the solution and give the correct answer. The teacher can send everything written on the board to the Internet, so that a sick student can follow the lesson in real time at home on his computer.

So far, tests have revealed only one drawback: standing at the board blocks part of the projector beam. However, even a person who writes on an ordinary school board blocks part of what is written with his back. In addition, the problem can be dealt with by making the board translucent and placing the projector at the back.

Other interesting news:

▪ Washing powder plus polymers

▪ Why is it difficult to sleep in a new place?

▪ Heart beats to conception

▪ Ultrathin lenses made of fractal metamaterial

▪ solar wind magnetometer

News feed of science and technology, new electronics


Interesting materials of the Free Technical Library:

▪ site section Digital technology. Article selection

▪ article From it all qualities. Popular expression

▪ article How far is the nearest fixed star? Detailed answer

▪ article Pterocarpus sacculus. Legends, cultivation, methods of application

▪ article Vacuum cleaners. Encyclopedia of radio electronics and electrical engineering

▪ article Ball between fingers. Focus Secret

All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews