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Why does tickling cause laughter? Detailed answer

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Why does tickling cause laughter?

When tickled, a spasm of the rib muscles occurs. They begin to shrink involuntarily, which makes it seem that the person is laughing.

Author: Mendeleev V.A.

 Random interesting fact from the Great Encyclopedia:

Why was the VAZ-2121 car called Niva?

The name of the car VAZ-2121 "Niva" has nothing to do with the sown fields. It turned out by adding the first letters of the names of the children of the chief designers: one had daughters Natalya and Irina, and the other had sons Vadim and Andrey.

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Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

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Random news from the Archive

Mobile trap to move antimatter between research labs 11.11.2020

It is known that antimatter is a substance, the storage and transportation of which are fraught with many difficulties due to the fact that it, this antimatter, immediately seeks to destroy the material of the container in which it is being placed. And recently, CERN BASE scientists have found a way to safely move antimatter to scientific instruments in other laboratories, where scientists will use it to try to "reveal" some of the fundamental mysteries of our universe.

The Antimatter Decelerator (AD) facility is one of the few places on Earth where antimatter is produced. However, the specifics of the operation of this installation, in particular, the strongest magnetic fields used in it, make its location completely unsuitable for carrying out other experiments. And then there is the problem of transporting antimatter to other places more suitable for research.

BASE scientists have already completed the design of a mobile trap, which is called BASE-STEP. This setup is based on the principle of the well-known Penning trap, in which antiprotons are kept from contact with the walls of the container using electric and magnetic fields. Moreover, the BASE-STEP facility uses two independent Penning traps, one for receiving and releasing antimatter, and the other for its long-term storage in high vacuum.

CERN scientists have been using the new upgraded Penning traps for some time now, which are capable of storing antiprotons for 400 days. For comparison, we note that similar traps used back in 2011 ensured that antimatter was stored for no more than 16 minutes. And the big problem that BASE scientists had to face was the miniaturization of existing traps while maintaining their properties, i.e. no loss in antimatter storage time.

Both traps of the BASE-STEP installation are located inside a superconducting coil of a magnet that generates a field of 1 Tesla. This strong magnetic field prevents the antimatter from contacting the walls of the traps during the bumps and jolts that inevitably occur during transportation. To maintain the cryogenic temperature inside the trap and in the magnet windings, liquid helium is used, of which there is a supply sufficient for several hours of antimatter storage. The dimensions of the BASE-STEP trap are 1,9 x 1,6 x 0,8 m, and its weight does not exceed 1000 kilograms.

As scientists hope, research on antimatter, facilitated and accelerated by the possibility of its transportation, will eventually make it possible to find the answer to one of the most important fundamental questions of physics. This question is as follows - according to the existing theory, an equal amount of matter and antimatter appeared during the Big Bang. Today, in the accessible part of the universe around us, we observe only ordinary matter. So what exactly led to the emergence of such an imbalance, and where did almost all the antimatter go?

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