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Spatters to the rescue

22.04.2016

Bryzguny is a genus of ray-finned fish of the perch-like order, characterized by the ability to splash water in order to knock down insects that they feed on. Depending on its size, the archer can "shoot" up to two meters away. Thanks to this ability, archerfish in their English name - archerfish - became popular in the US Navy, and 2 submarines were named by this name, one of the Balao class during World War II, and the second of the Sturgeon class, which was in service from 1971 to 1998 G.

In 2003, the US Navy announced the start of a program called the "Air Mine Neutralization System", which involved the creation of a remotely controlled device to combat mines. The Archerfish project proposed by the British company BAE Systems was chosen as the basic concept, and its development began in 2007. And this year, the US Department of Defense signed a $ 22 million contract with BAE Systems for the industrial production of "Bryzgun".

Unlike other autonomous anti-mine underwater devices, Archerfish can be launched not only from ships, but also from helicopters - in this particular case, from a Sikorsky MH-60S helicopter. After the device is released into the water, it moves under water in search of mines, and the operator controls it from a helicopter, transmitting commands via an optical fiber cable. Dual propulsion allows Archerfish to operate in two modes: moving towards the target and hovering to identify and destroy the target.

When the "Bryzgun" detects a mine using sonar and video camera, the operator gives a command to destroy using a directed energy warhead. Which one, BAE Systems does not mention, but immediately indicates that the company also develops and supplies modern programmable mines using new insensitive explosives with a plastic binder - presumably insensitive to the "Bryzgun".

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Clouds predict an earthquake 27.10.2008

Chinese geophysicists, having studied satellite photographs of the Earth over many years, argue that large, long-lasting breaks in the clouds can be harbingers of an earthquake.

In December 2004, a gap in the clouds was observed over the southern part of Iran for several hours, stretching for hundreds of kilometers. He remained in one place, although the clouds around him moved. The opening coincided with the geological fault known here. At the same time, infrared images showed that the ground in this place has a higher temperature than usual.

After 69 days, an earthquake of magnitude 6,4 occurred. In December 2005, a break in the clouds was again observed there. 64 days later, an earthquake of magnitude 6 occurred.

The authors of the study suggest that some gases are released from the soil before the earthquake, preventing the condensation of water in the atmosphere. According to another version, the piezoelectric effect that occurs in rocks under strong compression is to blame. Clouds are dispersed by the electric charge of the earth's surface.

However, skeptics point out that two such cases are not enough to draw far-reaching conclusions.

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