What animals can stock up on canned earthworms? Detailed answer

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What animals can stock up on canned earthworms? Detailed answer

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What animals can stock up on canned earthworms?

Most of the diet of moles is made up of earthworms. Mole saliva contains a special toxin that does not kill the worm, but paralyzes it. Therefore, the mole can bite the worms and make supplies in special "pantries" in its tunnels. The number of individuals preserved in such warehouses can run into hundreds and thousands.

Authors: Jimmy Wales, Larry Sanger

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Why is Hippocrates considered the father of medicine?

The ancient Greek physician and ancient medicine reformer Hippocrates (460-377 BC) is called the father of medicine because he was the first to promote a rational approach to the treatment of diseases. He departed from the views accepted in his time, according to which diseases were considered as a manifestation of the divine or the devil.

Having freed medicine from religious prejudices, Hippocrates determined the ways of its independent development. He taught that the doctor should not treat the disease, but the patient, taking into account the individual characteristics of the organism and the environment.

Hippocrates proceeded from the idea of the determining influence of environmental factors on the formation of bodily (constitution) and mental (temperament) properties of a person. He put forward four basic principles of treatment: to benefit and not harm, the opposite to treat the opposite, to help nature and, being careful, spare the patient. Hippocrates is also known as an outstanding surgeon: he developed methods for applying bandages, treating fractures and dislocations, wounds, and fistulas.

Hippocrates is credited with the text of the so-called medical oath ("Hippocratic Oath"), which succinctly formulates the moral norms of a doctor's behavior (although the original version of the oath existed in ancient Egypt).

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Shrimp will help in the extraction of uranium 06.09.2012

In an attempt to make it easier for the shrimp and crab industry to dispose of the shells, scientists unexpectedly discovered a cheap way to extract uranium from seawater.

As you know, the reserves of uranium ore on Earth may soon run out, which will put an end to obtaining energy using nuclear power plants. However, there is another, practically inexhaustible, billions of tons, source of uranium - ocean water. But since the content of uranium in it does not exceed 3,3 milligrams per ton, its extraction remains unprofitable today.

Chemists have been struggling with this problem for a long time and have made some progress in recent years. The best results were obtained by Japanese researchers at the beginning of the 2003st century. They created a mat of plastic fibers impregnated with molecules that both bound the fibers and absorbed the uranium. In 100, with the help of such a mat, the Japanese "got" a kilogram of uranium out of the water. Such carpets up to 200 meters long can be lowered to a depth of XNUMX meters. They are taken out of the water, washed with an acid solution to release the uranium, and put back into the water.

Various laboratories tried to improve the performance of the "uranium" mat by adding porous "nanoparticles" of silicon oxide or carbon to its composition, but the first serious result was achieved by a team of chemists from the University of Alabama using polymers obtained from shellfish shells.

This group worked under contract with a company that manufactures products from crab and shrimp. The organization was so interested in resolving the issue of shell disposal as soon as possible that it was ready to pay hundreds of thousands of dollars for it. Scientists have developed an appropriate method, having found that the "ionic liquid" - molten salt - is able to extract chitin from the shells. It was also found that chitin is not only the basis of the shells, but is also an ideal means for accumulating uranium, and is very easily and firmly "embedded" in the composition of the fibers of the "uranium" mat.

According to Dr. Robin Rogers, who leads the research team, their mat is capable of collecting twice as much uranium as a Japanese one. This brings it closer to the standards of industrial use, although, says Rogers, their results "are not yet very good for the modern economy." He, nevertheless, is sure that by modernizing the received methodology, his group will be able to find a way out.

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