Which scientist and for what purpose cut the skin from his fingers? Detailed answer

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Which scientist and for what purpose cut the skin from his fingers? Detailed answer

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Which scientist and for what purpose cut the skin from his fingers?

The Russian scientist Vasily Petrov, who was the first in the world to describe the phenomenon of an electric arc in 1802, did not spare himself when conducting experiments. At that time, there were no such devices as an ammeter or voltmeter, and Petrov checked the quality of the batteries by feeling the electric current in his fingers. And in order to feel very weak currents, the scientist specially cut off the top layer of skin from his fingertips.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

How did Tsar Ivan IV the Terrible call Queen Elizabeth I for her concern for the interests of British trade?

The Russian Tsar Ivan IV the Terrible, fearing that the boyars would force him to abdicate, wrote to the English Queen Elizabeth I: “If the rebellious boyars overcome me and depose me, then promise me to give you shelter in England. If this happens to you, then I I will give you shelter in Moscow."

In her response, Elizabeth kept silent about the shelter, and wrote only about the terms of the trade agreement. Ivan reacted as follows: "I wrote to you about my sovereign needs, and you answer me about the needs of your merchant men, and you came out like a vulgar fool."

Some historians argue that the words "vulgar fool" in the time of Ivan the Terrible had the meaning of "a simple girl", but others consider this statement unfounded.

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