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Landslide under control

25.09.2006

British scientists came up with a sensor to control the landslide.

“Every year, hundreds of people die due to sudden landslides. And many of them could be saved if they knew that a disaster would happen in the near future. Even ten minutes is enough to evacuate the inhabitants of a house in danger. and feeds the device we have developed," says Dr. Neil Dixon from Lowborough University (UK).

The device consists of a pipe stuck into the slope with a sensor that is able to collect information about high-frequency sound vibrations. Usually they are created by deep particles of soil, which suddenly set in motion. The sensor sends information to the computer, which calculates the slope stability parameters. If it turns out to be small and a landslide is imminent, the system notifies of an impending disaster.

"The places of possible landslides are usually known. Sensors installed on such suspicious slopes will help to avoid disaster: block a dangerous road in time or take residents to a safe place," says Neil Dixon.

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Even 30 years ago, as part of a Soviet-French experiment, scientists caused artificial aurora over the Arkhangelsk region by injecting electron beams into the ionosphere from a rocket specially launched to a height of 150-200 kilometers. And recently, American scientists were able to repeat this experience without climbing up.

From the territory of Alaska, a beam of radio waves was sent into the sky, and the sky lit up with green light. The experiment will help decipher the still not very clear nature of the natural aurora. And some enthusiasts hope that in the future, artificial aurora can be used to illuminate cities at night and even for glowing advertising in the sky.

However, for the experiment, a radio wave generator with a power of one megawatt and an antenna field with an area of ​​​​more than a hectare were needed. It is probably easier and cheaper to illuminate cities in the traditional way.

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