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Xiaomi Walkie-Talkie 3

13.04.2022

Xiaomi has released a third-generation right called the Xiaomi Walkie-Talkie 3, which is on sale in China for $62, offering several improved features including full Netcom 4G support. Netcom's full 4G support extends to the top three carriers in China. This feature allows you to establish communication at a distance of up to 5000 km throughout the country.

The walkie-talkie has different functions and supports over-the-air updates at the same time, which may add more functions in the future.

Xiaomi Walkie-Talkie 3 supports various intercom methods, including face-to-face intercom, multi-person communication, and two-way voice calls. The walkie-talkie is equipped with a high-performance audio system, consisting of a large-sized 40mm speaker and a professional sound processing chip, which provides a 30% increase in volume compared to previous models. There is also an environmental noise reduction algorithm that reduces distortion by 10,9%.

Xiaomi Walkie-Talkie 3 has a built-in 3000mAh battery that can last up to 100 hours of standby time and can also be used up to 60 hours. The device is charged via USB-C.

The novelty is equipped with a 2-inch color screen, meets the degree of protection IP54 and is equipped with a built-in rear clip. There is a 3,5 mm jack and the ability to connect to Bluetooth headsets.

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The Milky Way is Bigger Than Thought 07.07.2013

A new study by scientists at the University of Colorado Boulder using the Hubble Telescope shows that the Milky Way may actually be much larger than previously thought.

Studies of spiral galaxies like ours have shown that they are surrounded by a halo of gas more than 1 million light-years across. For comparison: until now, the diameter of the Milky Way was estimated at about 100 light years. Despite the fact that the density of the gas is small, nevertheless, spiral galaxies turned out to be much more massive than previously thought. The scientists calculated the mass of the haloes, which are mostly oxygen-enriched interstellar gas. This mass turned out to be large: almost the same as the stars inside the galaxies themselves. Needless to say, this discovery will seriously affect modern models of the evolution of spiral galaxies, and the entire Universe as a whole.

Why has such a significant mass of matter not yet been discovered? Everything is banal: the halo around galaxies is cold and contains too rarefied gas. It is not known when it would have been discovered at all, if not for the calculations carried out by NASA specialists in 2009, when the installation of the COS spectrometer on the Hubble telescope was being prepared. Then theoretical studies showed that spiral galaxies seem to have about 5 times more gas than was observed by astronomers. Only now, thanks to Hubble's observations, it was possible to find part of the "missing" gas.

A very complex technique was used to detect a highly rarefied gas. Scientists used distant quasars (superbright massive black holes) as "flashlights" that shone through space and made it possible to record the passage of ultraviolet light through the haloes of gas around galaxies. Then, using the COS spectrometer, the chemical composition, density, velocity, and other characteristics of the galactic gas halo were studied.

At present, astronomers are busy carefully studying the phenomenon they have discovered. Scientists are very hopeful that the Hubble Space Telescope will continue its work. The fact is that the James Webb telescope, announced as Hubble's successor, cannot observe in the UV range, and most likely its capabilities will be mainly directed to the "fashionable" topic of searching and studying exoplanets.

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