Where was the carrier pigeon promoted to colonel? Detailed answer

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Where was the carrier pigeon promoted to colonel? Detailed answer

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Where was the carrier pigeon promoted to colonel?

For great services in the First World War, the rank of colonel in the English army was awarded to carrier pigeon No. 888, who was buried after death with full military honors.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Why does one American city have a traffic light with a green signal at the top?

In the American city of Syracuse, New York, there is a quarter of Tipperary Hill, populated mainly by the descendants of Irish immigrants. Here is the only traffic light in the world, which has a green signal at the top and a red one at the bottom. When the traffic light was first installed in 1925, children smashed the glass in it because the Irish green was under the British red. Three years later, the authorities gave up and decided to permanently fix the reverse location of the signals at this traffic light.

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Ocean floor cleaning robots 07.09.2020

We have all seen the scary pictures of the huge amount of debris on the surface of the oceans. Experts say that there is much more waste on the seabed. To solve this problem, the SeaClear project, funded by the European Union, is developing underwater robots that will clean up garbage autonomously.

The system will consist of four robotic vehicles: an aerial drone, two underwater remotely operated robots (ROVs) and an unmanned vessel that will serve as a "mother ship". Through special cables, the vessel will supply power to two ROVs.

It is planned that the system will initially be deployed in coastal areas, since it is in these places that most of the underwater debris that enters the seas through rivers.

Special modules based on artificial intelligence will be built into the ROV. So the robot will be able to distinguish garbage from marine animals, plants and corals. The system will perform its work in two stages. First, an aerial drone and one of the robots will look for debris on the surface of the water and in the water column, experts say that if debris is present in both of these areas, then it is likely that they are present in abundance on the seabed.

Having found pollution, the second robot will sink to the bottom and collect debris using a suction device. After the ROV returns to the surface, the debris from its container will be disposed of.

The prototype SeaClear has already been tested this spring at depths of 20 to 30 meters in the port of Hamburg and along the coast of Dubrovnik. These places were chosen because they are very different from each other. The port is busy, industrial and has muddy waters, while the Croatian coast is much calmer with clear waters and tourist oriented.

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