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In which country did they try to prevent the development of color television due to fears of social stratification? Detailed answer

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In which country did they try to prevent the development of color television due to fears of social stratification?

When color televisions appeared in Israel in the 1970s, the government saw them as an unjustified luxury that contributed to social stratification and instructed TV channels to continue broadcasting in black and white and to remove the color component from imported programs and films.

To do this, the so-called sync pulse was suppressed at television stations, due to which a special module in television receivers interpreted color as noise and removed it. However, engineers immediately came up with an "anti-suppressor" device, which was sold in stores for 10% of the price of a new TV. The inconvenience was that about once every 15 minutes the color disappeared, and the audience had to twist a special knob to restore it.

A few years later, officials found that the vast majority of viewers had bought anti-suppressants and lifted the ban.

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

In what century did the last execution on the guillotine take place, and Swiss women received the right to vote?

In Europe, in the second half of the 20th century, things were practiced that today are considered absolutely uncivilized. For example, Swiss women received the right to vote only in 1971 (in the local elections of the canton of Appenzell - Innerrhoden and even in 1991). And the last execution on the guillotine took place in France in 1977.

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The structure of pentaquarks has been studied 16.06.2019

Exotic subatomic particles called pentaquarks contain five smaller particles - quarks and antiquarks. But these particles are not just an accumulation of five components. Pentaquarks are molecular-like agglomerations of a pair of smaller particles, one of which consists of three quarks, and the other of a quark and an antiquark.

First discovered in 2015 at the Large Hadron Collider in Geneva, pentaquarks were unlike anything before. All previous known particles containing quarks were either baryons—particles such as protons and neutrons that contain three quarks—or mesons, which are composed of one quark and one antiquark. But pentaquarks, with their five component particles, did not fit into any of these categories.

"There was no clear picture of how pentaquarks are built," says particle physicist Tomasz Skwarnicki of Syracuse University in New York, co-author of the study.

Some scientists believed that the five components can be combined on an equal footing. But detailed measurements show that pentaquarks are made of two known particles, the baryon and the meson, glued together. This discovery makes the particles a little less exotic than intended.

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