January 22, 1939 - Columbia University in New York City, U.S.A.
The uranium atom was split for the first time using the cyclotron at Columbia University in New York City. Thus began the Manhattan Project, leading to the construction of the atom bomb. The project was subsequently moved inland to the University of Chicago to protect the research from any possible German bombing of New York. (Also the weight of the apparatus was so great that the floor was in danger of collapsing!) The cyclotron that performed the first-ever fission experiment was designed and built (1935-36) by John R. Dunning, who became Dean of the Engineering School, 1950-69). In 1965, the cyclotron was taken to the Smithsonian Institute. The original invention of the first cyclotron was by physicist Ernest Lawrence.
SPACE DEBRIS HITS PERSON ON EARTH
January 22, 1997 - Tulsa, Oklahoma, U.S.A.
American Lottie Williams was reportedly the first human to be struck by a remnant of a space vehicle after re-entering the earth's atmosphere. At 3 a.m., while walking in a park in Tulsa, Oklahoma, she saw a light pass over her head. “It looked like a meteor,” she said. Minutes later, she was hit on the shoulder by a six-inch piece of blackened metallic material. The debris that struck Ms. Williams has not been examined to confirm its origin, but a used Delta II rocket, launched nine months earlier, had crashed into the Earth's atmosphere half an hour earlier. NASA scientists believe that Williams was hit by a part of it, making her the only person in the world known to have been hit by man-made space debris.
Rules for Happiness
by Immanuel Kant
"...Rules for Happiness: Something to do, Someone to love, Something to hope for...."
No Man is Above the Law
by Theodore Roosevelt
"..."No man is above the law and no man is below it; nor do we ask any man's permission when we require him to obey it. Obedience to the law is demanded as a right; not asked as a favor."..."
about Steve Jobs
Steve Jobs' annual salary was $1, just enough to keep company health benefits.
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.
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Category Information : Search Engine
This is our Search Engine category. If you are interested in Search Engine, feel free to browse these listings. If you have a site that fits within this category, Submit it for inclusion.
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.