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The first 60 satellites of the global Internet

14.05.2019

The head of SpaceX Elon Musk has unveiled the first batch of satellites that will provide Internet access for all the inhabitants of the planet.

The satellite internet project that SpaceX is building is called Starlink. The first developments began in 2015, and on February 22, 2018, the company launched test prototypes into space. Now that SpaceX engineers have taken into account all the flaws and fixed the problems, the first batch of Starlink is ready to launch.

Sixty satellites will be launched on the night of May 15-16 on a Falcon 9 rocket. In total, Elon Musk plans to launch 12 of these miniature repeaters into orbit, which will provide uninterrupted access to the Network for the entire population of the Earth.

Musk and Space X did not say if there would be a charge for the service, and if so, how much. Although Elon Musk has previously stated that the goal is to keep prices low and beat competitors like OneWeb or Jeff Bezos' Kuiper project.

If the project is successful, people around the world will have internet that is about 40 times faster than the average ISPs offer today.

The plan for further launches will be discussed. Elon Musk plans to cover the entire globe with satellite Internet by the end of 2020. The head of SpaceX intends to carry out the second and subsequent launches of Starlink satellites using the Starship spacecraft, the second stage of the Big Falcon Rocket rocket.

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Energy from space for Starship 08.05.2024

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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, ... >>

Major risk factor for gambling addiction 07.05.2024

Computer games are becoming an increasingly popular form of entertainment among teenagers, but the associated risk of gaming addiction remains a significant problem. American scientists conducted a study to determine the main factors contributing to this addiction and offer recommendations for its prevention. Over the course of six years, 385 teenagers were followed to find out what factors may predispose them to gambling addiction. The results showed that 90% of study participants were not at risk of addiction, while 10% became gambling addicts. It turned out that the key factor in the onset of gambling addiction is a low level of prosocial behavior. Teenagers with a low level of prosocial behavior do not show interest in the help and support of others, which can lead to a loss of contact with the real world and a deepening dependence on virtual reality offered by computer games. Based on these results, scientists ... >>

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The sounds that surround us in modern cities are becoming increasingly piercing. However, few people think about how this noise affects the animal world, especially such delicate creatures as chicks that have not yet hatched from their eggs. Recent research is shedding light on this issue, indicating serious consequences for their development and survival. Scientists have found that exposure of zebra diamondback chicks to traffic noise can cause serious disruption to their development. Experiments have shown that noise pollution can significantly delay their hatching, and those chicks that do emerge face a number of health-promoting problems. The researchers also found that the negative effects of noise pollution extend into the adult birds. Reduced chances of reproduction and decreased fertility indicate the long-term effects that traffic noise has on wildlife. The study results highlight the need ... >>

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Sony Cyber-shot DSC-WX500 and DSC-HX90V compacts 20.04.2015

Sony has unveiled the Cyber-shot DSC-WX500 and DSC-HX90V, which are claimed to be the world's smallest 30x optical zoom cameras to date.

Both new products are endowed with a 1 / 2,3-inch (6,17 x 4,55 mm) BSI-CMOS matrix with 18,2 million effective pixels and a Bionz X image processor. 80-12800 p.

The photo compacts are equipped with a ZEISS Vario-Sonnar T* lens; focal length is 24-720mm equivalent for 35mm film cameras. A 5-axis SteadyShot image stabilization system is provided. The digital zoom function allows you to increase the zoom range up to 60x.

Both cameras are endowed with a 3-inch swivel display. The Cyber-shot DSC-HX90V also features a retractable OLED Tru-Finder EVF and a GPS navigation system receiver.

New items allow you to get images with a resolution of up to 4896 x 3672 pixels. Supports video recording at a resolution of 1920 x 1080 pixels (60p, 60i, 30p, 24p) and sequential photography at 10 frames per second. Materials are stored on SD/SDHC/SDXC and Memory Stick Duo cards.

Camera dimensions are 102 x 58 x 36 mm, weight - 236-245 g. Power is provided by a lithium-ion battery NP-BX1.

The Cyber-shot DSC-WX500 and DSC-HX90V will go on sale in June for $330 and $430, respectively.

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