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Physics. Interesting Facts

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A large selection of questions and answers on the subject of Physics.

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 Physics. Simple answers to complex questions:

 


 

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Latest news of science and technology, new electronics:

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

HGST Ultrastar He 6TB Helium Hard Drives 10.11.2013

HGST, wholly owned by Western Digital since last year, announced the start of deliveries of 6TB Ultrastar He hard drives. Recall that the prefix He in the name of the products means the use of advanced HelioSeal technology.

Last year it became known about the plans of HGST to replace the traditional air that fills the so-called hermetic zone of the hard drive with helium. According to the developers, the use of lighter gas can reduce power consumption. Adding platters also increases storage capacity. New products are aimed at use in cloud environments, information backup systems, RAID environments, data centers.

In their press release, the developers compared the new drives with traditional 4TB HDDs filled with air. Gel hard drives feature 23% lower standby power consumption, 49% better energy efficiency (watts per TB), and 1 grams lighter weight, despite increasing the number of platters by two, resulting in 50% capacity increase, 50% less weight per TB.

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