What funny day is Internet Day? Detailed answer

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What funny day is Internet Day? Detailed answer

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What funny day is Internet Day?

Archbishop Isidore of Seville, who lived in the 6th-7th centuries, wrote the 20-volume work "Etymology", in which he systematized the knowledge available at that time in the world. It is he who is considered the first encyclopedist, and now many Catholics revere him as the patron of the Internet.

It's funny that Internet Day is celebrated on the day of the death of Isidore of Seville on April 4 - when written in numbers, this date coincides with the most recognizable 404 error code.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Who created the piano?

Did you know that, with the exception of the organ, the piano is the most complex musical instrument? The name "piano", or, as they used to say, "pianoforte", can literally be translated as: "quiet-loud". This suggests a rich range of sounds that the piano can produce.

And yet this very complex instrument evolved from the simplest "monochord" - a box with a single string, on which musical intervals were applied. Such "sound boxes" were also used by cymbals and psalterion in the times of the Old Testament. The player plucked the strings, plucking them.

Approximately 1000 AD. e. Guido d'Arezz invented the movable monochord stand and increased the number of keys and strings. In this form, the instrument was distributed until the XNUMXth century.

One of the most attractive instruments obtained by the improvement of the monochord was the clavichord. A copper detail appeared in it - a "peg". Its pressure produced a vibration of the strings, and as a result, the sound of the instrument was achieved, which could be strengthened or weakened at the will of the musician.

Closest to the clavichord was the spinet - an oblong instrument with a range of four octaves, the sound of which was also achieved by plucking the strings.

In the middle of the XNUMXth century, the harpsichord became popular. This instrument is larger than both the clavichord and the spinet and usually has two keyboards. It is shaped like a large piano. The sound from its strings is extracted with the help of tiny feathers.

And finally, in 1709, Bartolomeo Christofori invented the hammer system and applied it to create a new instrument based on the harpsichord - the pianoforte. The use of hammers made it possible to permanently do away with the creaky sound that cannot be avoided in more primitive instruments. Beethoven was the first composer to introduce the piano into wide use.

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