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What birds helped the Japanese and Chinese in fishing? Detailed answer

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What birds helped the Japanese and Chinese in fishing?

Since ancient times, trained cormorants have been used for fishing in Japan and China. Rings were put on the birds around their necks, and then they were tied to a rope and released into the water. Cormorants caught fish, but could not swallow it and brought it to the owner. Now this method has no practical significance and is used only for the entertainment of tourists.

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

What is the size of the largest known meteorite crater in the solar system, and where is it located?

The largest known meteorite crater, Valhalla, is located on Callisto, a moon of Jupiter.

It has a bright central region about 600 kilometers in diameter and a system of concentric ridges extending 1500 kilometers from the center of the crater.

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Electronic collars for dog training 22.01.2013

The Garmin brand is traditionally associated with GPS and satellite navigation, but the company is also showing interest in such a seemingly unexpected topic as pets. This time the company presented electronic dog collars of the BarkLimiter and Delta series, which will help in the difficult task of training man's best friend.

BarkLimiter collars, as the name suggests, are designed to keep your dog from barking less often. To do this, the so-called "barking identification technology" is used, with the help of an accelerometer, the gadget distinguishes real barking from other sounds that a dog makes. When a friend of a person starts to bark, the collar applies a kind of "correction", the intensity of which gradually increases. Another notable feature is the so-called bark counter or Bark Odometer, which captures every dog ​​"woof" when the owner is away. Garmin is preparing to release two versions of this collar, the standard BarkLimiter with a disposable battery that lasts 10 months, and the BarkLimiter Deluxe with a battery that lasts up to three months on a single charge.

Delta collars belong to the sports series, the Delta Sport version includes all the functionality of the BarkLimiter. The kit comes with a control mobile device with an LCD display, with which the owner can select different training profiles. The device connects to the collar at a distance of up to 1,2 km, and you can connect up to three collars at the same time. A basic Delta version is also available without built-in BarkLimiter functionality and with a wireless transmitter range of up to 800 m.

The BarkLimiter and BarkLimiter Deluxe collars are recommended for sale at a retail price of $79,99 and $99,99, respectively, for the basic Delta version you will have to pay $199,99 and the top Delta Sport will cost $249,99. Garmin promises to release new products in the first quarter of 2013.

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