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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RANDOM QUOTES
Rules for Happiness
by Immanuel Kant
"...Rules for Happiness: Something to do, Someone to love, Something to hope for...."
Until a man duplicates a blade of grass
by Earth Day, Thomas Alva Edison Inventor
"...Until a man duplicates a blade of grass, Nature can laugh at his so-called scientific knowledge. Remedies from chemicals will never stand in favorable comparison with the products of Nature, the living cell of a plant, the final result of the rays of the sun, the mother of all life...."
RANDOM FACTS
Harvard Medical School
about Eyesight Myth and Fact
Myth: Staring at a computer screen all day is harmful to the eyes.
Fact: Spending the day staring at a screen can tire or strain your eyes, but it will not hurt them. Make sure lighting doesn't create a glare on your screen. When spending long periods at your keyboard, take a break now and then to rest your eyes to reduce fatigue. Also, don't forget to blink. Your eyes need to stay lubricated to feel comfortable.
Salary
about Steve Jobs
Steve Jobs' annual salary was $1, just enough to keep company health benefits.
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Horseback riding in Las Vegas. Choose from rides that include breakfast, lunch, or a sunset steak dinner. Overnight Las Vegas horseback tours also available.
Animal and Pet related classified ads listing pet and animal related products and information only. Our Classified Ads are indexed by state and city and are searchable by zip code. Search for pet r...
Search engine is the term with which we are accustomed with very much. But the web directory is not that same. The web directories are older than search engines according to the time of their invention.