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What is the stain on most American dollars? Detailed answer

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Directory / Big encyclopedia. Questions for quiz and self-education

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What is tainted with most American dollars?

Most American dollar bills have traces of cocaine on them. However, this does not mean that they were all used for drug use - its particles are transferred from one bill to another when they come into contact in wallets.

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

What actress was late for her own funeral?

Elizabeth Taylor was famous for her quality of being consistently late. Knowing this, she wished to show her nature even after death. Her funeral began 15 minutes later than the scheduled time, and the ceremony's agent read the announcement: "She wanted to be late even for her own funeral."

 Test your knowledge! Did you know...

▪ How did the postal service originate?

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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. ... >>

Air trap for insects 01.05.2024

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

Lightning prediction 29.06.2019

Scientists from the University of Tokyo have discovered a link between lightning strikes and two types of gamma radiation in thunderclouds.

A new study shows that under certain conditions, weak gamma rays from thunderclouds can precede lightning strikes and their accompanying gamma-ray bursts. There are two known types of gamma-ray phenomena associated with thunderclouds: gamma rays (weak radiation that lasts about a minute) and short-term terrestrial gamma-ray flashes that we observe in the form of lightning strikes.

Both types take place in thunderclouds sandwiched between layers of variable charge. The charged regions accelerate the electrons to almost the speed of light, after which the electrons slow down slightly and emit a gamma ray. This is called bremsstrahlung.

The monitoring system allowed Japanese experts to detect simultaneous terrestrial gamma-ray flashes and lightning strikes. This is a fairly common phenomenon, but observations have also made it possible to detect gamma rays in the same area and at the same time. Scientists also noticed that after a lightning strike, the glow suddenly disappeared. This allows us to make the final conclusion that these events are closely related, and evidence for this was observed for the first time.

The research could hold the key to developing previously unknown ways to predict lightning. The team of experts intends to explore the possibility that the glow of gamma rays not only precedes lightning strikes, but may actually cause them.

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