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Spectacular tricks and their clues

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

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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

Electrode modernization of spacesuits to protect against Martian dust 05.03.2024

As astronauts prepare for a trip to Mars, they face many challenges, including protecting themselves from Martian dust, which can be hazardous to their spacesuits. To solve this problem, scientists propose equipping spacesuits with electrodes that create static repulsion.

NASA experts are confident that by 2040 people will go to Mars. However, to ensure the safety of astronauts, many technical problems must be solved, including protection from Martian dust. The dust on Mars is fine, electrically charged, and has sharp edges. It can penetrate inside spacesuits and cause various breakdowns, posing a threat to the crew.

To prevent this problem, scientists propose introducing a system of electrodes into spacesuits that creates static repulsion. This idea was put forward by British scientists from the University of Bristol.

The operating principle of the system is based on the phenomenon of dielectrophoresis, which is the movement of neutral particles under the influence of a non-uniform electric field. The proposed electrostatic removal system (ERS) includes a high voltage wave generator (HVWG) and an electrostatic removal device (ERD) consisting of an array of parallel copper electrodes.

When dust particles land on the surface of the ERD, they are subjected to electrostatic and dielectrophoretic forces, causing them to move and therefore clean the surface of the suit.

The experiments carried out by scientists included the study of various variables, such as the frequency and amplitude of the waves, the distance between the electrodes and others. The results of the experiments will be used to develop effective equipment.

Electrode retrofitting of spacesuits represents a promising solution to protect astronauts from Martian dust. It will ensure the safety of the crew during missions to Mars and other space objects.

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