Torn - whole! Effective trick and its solution

EFFECTIVE FOCUSES AND THEIR CLUES
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Torn - whole! Focus secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

Focus Description:

A magician comes on stage. He takes a napkin and tears it up. Then he rolls it into a ball, takes it and squeezes it in his palm. He takes a “magic” spoon out of his pocket, takes a napkin from his palm and touches it with the spoon. He puts the spoon back in his pocket. Then he unfolds the napkin - and it is safe and sound!

Focus secret:

In fact, when the magician comes out, he already has one wad of a whole napkin in his palm... When he takes out a spoon, he quietly replaces the torn napkin in his palm with a whole one. That's all!

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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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Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

Poplars will learn to decompose poisons 08.01.2018

Sharon Doty, a plant microbiologist at the University of Washington, USA, and her colleagues were able to isolate a very effective strain of detoxifying bacteria from a particular poplar (Populus nigra) and introduce it to other trees. This enhanced the poplars' natural ability to degrade the carcinogen trichlorethylene (TCE), an industrial solvent that seeps into groundwater near landfills. Thus, modified trees can be planted in areas with heavily polluted groundwater, where they will serve as an effective and inexpensive means of treating these waters.

One of Doughty's students collected Enterobacter strain PDN3 microbes from Wisconsin poplar shavings. The researchers soaked their hybrid seedlings with a suspension of these bacteria and planted them next to untreated seedlings at three Superfund sites near San Francisco, heavily contaminated with trichlorethylene and selected for cleaning by the US government.

Three years later, the positive effect became apparent. The soil around the "grafted" poplars contained 50% more chloride ions, harmless residues of the decomposition of TCE molecules, than the soil around the untreated poplars. In addition, treated trees had 30% thicker trunks than untreated trees, suggesting healthier growth. In general, the concentration of TCE at the landing site fell below the maximum limit for drinking water set by the Environmental Protection Agency.

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