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What people are engaged in collecting mussels under the ice during the low tides? Detailed answer

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What people are engaged in collecting mussels under the ice during the low tides?

Eskimos from the subarctic regions of Canada practice under-ice collection of mussels at the risk of their lives. They wait for low tide during the new moon or full moon, during which the water can retreat 12 meters, and look for cracks in the coastal ice. Through them, they descend to the seabed, whose edible inhabitants become easy prey. The danger to the life of these gatherers is both the ice from above, which is not supported by water and can collapse, and the fast tide, before which you need to get out.

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

How did the prejudice of farmers in the English county of Gloucestershire lead to the victory of medicine over smallpox?

At the end of the XVIII century, one of the most terrible diseases was smallpox. People were afraid of smallpox, not only because it often ended in the death of the patient, but also because those who were lucky enough to recover were doomed to lifelong deformity. In mild cases, smallpox left mountain ash on the face, and in severe cases, it destroyed not only all traces of a person’s beauty, but also external signs of belonging to the human race.

However, some farmers in the English county of Gloucestershire were not afraid of smallpox, having a special opinion on how to protect themselves from it. They were sure that if a person had been ill with cowpox, then this made him immune to ordinary smallpox. (Cowpox sometimes affects humans, but causes only subtle blisters and barely visible marks.)

The village doctor Edward Jenner (1749-1823) decided that this village "prejudice" may contain a grain of truth. He drew attention to the fact that the milkers, who had the greatest risk of contracting cowpox, did not have pockmarks on their bodies. Jenner suggested that cowpox and ordinary (human) smallpox are so similar to each other that the body's defense against cowpox protects a person from ordinary.

He decided to take a chance and on May 14, 1769, he inoculated an eight-year-old boy with cowpox, taking liquid from cowpox vesicles on the hands of a milker as an inoculation material. A month and a half later, he moved to the decisive stage of the experiment, bordering on recklessness: he inoculated the same boy with human smallpox. The boy did not get sick: he became immune to smallpox.

Jenner called the vaccination procedure vaccination (from the Latin "vaccinia" - cowpox). The way he discovered to prevent smallpox spread throughout Europe with supernatural speed.

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