Discovery of waves in Jupiter's magnetosphere. Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

Discovery of waves in Jupiter's magnetosphere

25.07.2023

During nearly half of Jupiter's magnetosphere boundary crossings, the Juno space station encounters waves that cause the planet's magnetic field to interact with the solar wind, according to a new study. This phenomenon was previously detected on Earth and Saturn, but was first recorded on Jupiter.

Jupiter has the strongest magnetic field of all the planets in the solar system, surpassing the Sun by almost 15 times. Its magnetic field accelerates charged particles that enter the magnetosphere from the solar wind or are ejected by the moon Io. This is manifested in the bright auroras and unique dawn storms that the Juno space station has been studying for more than seven years. With the help of this station, astronomers from the University of Texas at San Antonio, together with colleagues, discovered a hitherto unknown phenomenon on Jupiter - Kelvin-Helmholtz instabilities.

Kelvin-Helmholtz instabilities occur at the boundary of two media with different velocities and directions, causing eddies. These wave structures can be observed on the surface of the water during strong winds, in the atmosphere of the Sun, and in the magnetospheres of the Earth and Saturn when they collide with streams of charged particles from the Sun.

However, waves in Jupiter's magnetosphere were discovered for the first time. Their presence was confirmed by the analysis of data on the flow of charged particles around Jupiter, received from the Juno, as well as plasma measurements during the station's passage through the planet's magnetopause - the boundary separating the magnetosphere and the environment.

Planetary scientists have found that in 25 out of 62 magnetopause crossings, the conditions around Juno met the requirements for the occurrence of Kelvin-Helmholtz instabilities. Scientists suggest that the resulting waves contribute to the transfer of solar wind particles deep into the planet's magnetosphere, influencing the local structure of the magnetic field and other processes. The researchers hope their study will help better understand Jupiter's magnetic field and how it interacts with space weather.

<< Back: Noise Buds VS104 Max TWS Silent Headphones 26.07.2023

>> Forward: Coolest star emitting radio waves found 25.07.2023

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

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

Solar reactor produces hydrogen and captures waste 24.04.2023

EPFL engineers have built and tested a solar reactor that can generate hydrogen from sunlight and water. The system is not only highly efficient in producing hydrogen, but also captures oxygen and heat waste to also be used.

Hydrogen is set to become a key player in renewable energy, and one of the most efficient ways to produce it is to break down water into its constituent molecules. When this process is carried out using solar energy, it is called artificial photosynthesis, and this is the process that the new reactor uses.

The EPFL reactor looks like a satellite dish, and it works on a similar principle - a large curved surface collects as much light as possible and concentrates it on a small device suspended in the middle. In this case, the dish collects heat from the Sun and focuses it about 800 times on the photoelectrochemical reactor. Water is pumped into this reactor, where solar energy is used to split molecules into hydrogen and oxygen.

The reactor also captures two waste products of the process that are usually freshly released - oxygen and heat. Oxygen can be useful for hospitals or industrial uses, while heat passes through a heat exchanger and can be used to heat water or the interior of a building.

The reactor was tested on the EPFL campus for 13 days in August 2020, February and March 2021 to see how it performs under different weather conditions. Its solar-to-hydrogen efficiency has been found to average over 20%, producing about 500 g (1,1 lb) of hydrogen per day. The team says that with this capacity, for a year, the system could power 1,5 vehicles on medium-distance hydrogen fuel cells, or provide about half of the electricity needs of a household of four.

"With an output power of over 2 kilowatts, we have exceeded the 1 kilowatt limit for our pilot reactor while maintaining a record high efficiency for this large scale," said Sophia Haussener, corresponding author of the study. "The rate of hydrogen production achieved in this work is indeed an encouraging step towards the commercialization of this technology."

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews