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What can you never find in a casino? Detailed answer

Big encyclopedia for children and adults

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

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What can you never find in a casino?

Clocks and mirrors.

A person who is passionate about the game should not keep track of time. And mirrors in card games can accidentally reflect an opponent's card.

Author: Mendeleev V.A.

 Random interesting fact from the Great Encyclopedia:

How much energy does an athlete give off in half an hour?

Depending on the sport, energy efficiency varies widely. For example, when playing golf in 30 minutes, 104 kcal is consumed, in tennis - 225 kcal, while playing football - 232 kcal. And for half an hour of health-improving running (jogging) - 300 kcal.

 Test your knowledge! Did you know...

▪ What is the Industrial Revolution?

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▪ During the performance of whose opera two conductors in different years died of a heart attack?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

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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

Sensor for smart home Mi Human Sensor 2 27.11.2020

Xiaomi has unveiled its new device, the new Mi Human Sensor 2 motion sensor, which is offered at a price of $7 at the stage of collective financing.

The new Mi Human Sensor 2 can be placed in any part of the house or apartment. It tracks movements and triggers actions set by the user. The device can be connected to other smart home devices, and scenarios can be set up in the Mijia app. It supports Wi-Fi Mesh.

Xiaomi claims that it can accurately track movements in bright sunlight or complete darkness. Since it can be connected to other smart home devices, it has a wide range of use cases. For example, the user can set it to turn on the light at night when motion is detected. It can be configured to record video through the smart camera and transmit the video.

The Mi Human Sensor 2 uses low power technology and comes with a standard CR2450 battery that the company says will last about a year. The user will be notified to replace the power supply.

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