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    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.'

    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.

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Choosing a wedding ring :

Choose Your Color :

ARTICLE INFORMATION :

While you are purchasing a wedding ring the texture, color and shapes of the rigs are the important factors which you have to take care of. If you consider all these matters you are sure to be gainer.

ARTICLE CONTENT :

If we say a "wedding ring" then it sounds very simple. It is a thing that the bride and groom exchange on their wedding day. But if we think deeply then we can understand that it is something that binds the husband and the wife throughout their lifetime. If we think thus, it becomes a matter of great importance. It becomes obvious that everyone must be conscious while choosing the wedding ring for their loved ones. It will be with them forever as the sweet memory of their wedding day.

There are certain aspects of a wedding ring that should be paid attention to. Wedding rings differ from each other in color, texture, shape and size. These facts may create problems for you when you go to market for buying a wedding ring. So it is better for you that you make your mind up and then visit any store. This article will hopefully help you in this matter.

At first the wedding rings are different from each other in their base metal. Some are made of yellow gold or white gold or silver; some are made of platinum or titanium or tungsten. These metals vary in their cost.

The color of the rings differs according to the color of the metal. If it is normal gold, then the color will be yellowish. Now-a-days white gold is available in the market. White gold is developed when palladium and silver are alloyed with gold. Platinum and titanium are also white metals. Titanium is cheaper than platinum. For this titanium wedding rings are becoming popular day by day.

The wedding rings are found in the market in various shapes. It depends on you to choose the perfect one. You should at first visit any jewelry store or simply visit the online stores staying at home. This inspection will help you to have a clear idea about the thousands of models. To do this through internet is the best way. If you visit any online store, the online merchants are able to show a huge number of models throughout the whole world.

In the market many types of designs are available. There are solid rings as well as rings of intricate designs with subtle finishing. Some wedding rings are decorated with diamond or other precious stones. You may like white stones as diamond or you may also like the colorful stones. There are many colorful stones like ruby, sapphire, emerald etc.

These are all the types of wedding rings. When you are purchasing the ring you should keep in knowledge all these information. But the most important thing that you should not forget is the personality of your partner, and his or her choice.

You must choose the metal of the wedding ring with great care. Some of the metals are not at all suitable for the sensitive kind of skin. They can be the cause of skin rashes or skin allergy. The wedding ring is worn by everybody till their last breath. So this is a vital factor to be taken care of.

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