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TODAY IN HISTORY

    LEADED GASOLINE
    December 9, 1921 - Dayton, Ohio, U.S.A.

    Tetraethyl lead was first given a laboratory test as an anti-knock additive to gasoline fuel. The knock in the one-cylinder laboratory engine was utterly silenced. Even at a strength of only 2-3g grams per gallon (1000 to 1 dilution), it had a remarkable ability to quiet the relentless knocking. This invention of Thomas Midgley, Jr., of the General Motors Research Laboratories, located in Dayton, Ohio, was first put on public sale as ethyl gasoline in the same city on 2 Feb 1923. This invention of leaded gasoline came after seven years of testing at least 33,000 compounds. Previously, on hard acceleration, an engine sometimes made knocking, popping or crackling sounds, which sapped power and could damage the engine.

    MYSTERIOUS LIGHTS IN SKY OVER NORWAY
    December 9, 2009 - Norway

    The Norwegian Metrological Institute has received hundreds of calls from confused observers, but so far has been unable to identify the origin of the skylights that have been seen. Some experts have speculated that the phenomenon might have been caused by a Russian rocket launch, although the Russian embassy has insisted such claims are completely unfounded. Neither meteorologists, astronomers, or the armed forces have offered a solution to the matter. The light was captured by amateur photographer while he was on his way to work at a salmon factory. 'The light appeared for two or three minutes. I could not believe my eyes, and got the shivers and was quite shaken by it,' he said. Another observor, who saw the light phenomena from Sortland in northern Norway, added: 'A large ring appeared, and then spread out, sending a green beam down to earth.'

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All About Symbols :

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The article is dedicated to the descriptions of symbols and their role in our life. Much emphasis is paid to the significance of symbols used in works of art.

ARTICLE CONTENT :

Symbols are objects, pictures, written words, sounds or something like that and imply ideas, thoughts, notions, feelings and beliefs. A number of them are very common, like white rectangle on red background referring to "STOP" ,others have particular meaning and evoke deep emotions. For instance, such symbols are the Judaic Star of David or the crucifix in Christianity.

We are surrounded by symbols. Every day we are faced with something that has a symbolic sense. You may see symbols on money, in books, commercials, music compositions, politics etc. To understand the significance of a symbol a person has to know what this symbol refers to. For example, the Chinese symbol of yin and yang looks like an amusing image with white and black colors for people that don't know the underlying significance of the sign. They can enjoy its aesthetic side, but they do not see more than that. On the contrary, in case a person understands the origin of the symbol he sees not just a picture, but an idea of deep correlation of things in our lives.

During the history of humanity symbols were widely applied in art. So, one item on a painting tells a lot about the situation, the concepts of the painter, his views on life and aspirations. To understand the secret significance of a book or a music composition we need to be very attentive to details. Every now and then we need to read critics on a definite piece of art so as to get the idea of the author. This is because the symbols language isn't so simple. So what are the most popular symbols in art and what do they stand for?

Amidst the most common symbols applied in works of art are a book, a candle, a clock and mirrors. A book generally implies knowledge and learning. If you see a lightened candle on a painting it is in most cases a symbol of religion or time passing. On the other hand, a put-out candle implies death and mourning. A clock refers to the time passing. On this point the world-known painting of Salvador Dali called "Melting clocks" implies an idea that nothing in our lives is in keeping with some rules. And eventually, a mirror stands for attempts to get the truth, but in some cases it just implies the vanity.

In such a way, symbols are everywhere in our world. We just need to pay a little more attention to details to see them.

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