Where until recently was a society whose members adhered to the flat-earth model? Detailed answer

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Where until recently was a society whose members adhered to the flat-earth model? Detailed answer

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Where until recently was a society whose members adhered to the flat-earth model?

The English inventor Samuel Rowbotham published a book in the 19th century in which he argued that the Earth was in fact flat, as stated in some biblical texts. His followers in both the 19th and 20th century offered many refutations of the facts that our planet is a sphere, and satellite photographs of the Earth were called fakes.

Founded in 1956, the Flat Earth Society at its peak had 3000 members.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Where did the accident at the nuclear power plant take place a few days after the release of a film describing similar events?

On March 16, 1979, the film China Syndrome, which tells about the accident at a nuclear power plant, was released in the US. Just 12 days later, the real accident occurred at the Three Mile Island nuclear power plant, which was considered the largest in the history of nuclear energy before the Chernobyl disaster. In one episode of the film, an operator cuts off the emergency water supply to the core due to a faulty sensor, which almost leads to a meltdown of the station - about the same thing happened on Three Mile Island. Another character in the film says that such an accident could lead to the evacuation of people from an area the size of Pennsylvania, namely, Three Mile Island is located in Pennsylvania.

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Transmission of optical communication without wires over long distances 07.01.2023

For many years, the idea of 6G was considered unthinkable, but associate professor Josep Jornet from Northeastern University in the United States was able to achieve the impossible, writes Techexplore.

The basis of communication of the new generation is the terahertz frequency. Thanks to the help of NASA, the US Air Force and Amazon, scientists were able to prove that data transmission at a frequency of more than 100 gigahertz is quite real. Previously, everything was played in 5G and its frequency is 71 gigahertz.

But the main problem remained - it was not possible to transmit data over a long distance, because the higher the frequency, the shorter the distance signals can be transmitted. It turned out that even under laboratory conditions it was possible to transmit a signal at arm's length, and this technology had no practical application.

But Jornet and his team did not give up. Through a variety of experiments and working with special signal mixers, they injected information directly into the signal source itself. But at the other end they received "information mess", because the signal was very distorted. Then the scientists found an elegant and creative solution - they distorted the signal and at the output they were able to get it in its pure form at a distance of two kilometers.

A team of scientists spent four intense days at a US Air Force base to establish a long-distance terahertz link, and the next day they were able to send and recover the information without error. The system, developed by Jornet and his collaborators, achieved frequencies and throughputs that eclipsed 5G networks by more than "two orders of magnitude".

However, not everything is so perfect yet. Two kilometers is just a space distance compared to what it was in the beginning, but a clear and fast signal transmission still requires a clear line of sight and the absence of interference from urban or rural areas.

But Jornet argues that it's easier to put up a tower than to plow through the fields and meadows of farmers, laying fiber optics.

The scientist is sure that even before 6G becomes available in mobile phones, the terahertz range will play a big role in the communication infrastructure. The new standard will help reduce the digital divide between residents of megacities and rural residents who do not have access to fast fiber optic Internet.

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