Thomas Drummond made the first practical use of limelight while surveying in Ireland to enable work through misty days and night. He created an intense light from a lump of lime (calcium oxide) heated to incandescent by an oxygenated alcohol flame in front of a reflector. The haze over Lough Neagh obscured the view between Slieve Snaght, in Donegal, and Divis Mountain 66 miles away near Belfast, but the light penetrated it. He attempted to adapt it for lighthouses, but found operation too costly. The bright light given off by heated metal oxides was first investigated in the 1820s by Goldsworthy Gurney who created the oxyhydrogen blowpipe. Limelight was also used not only in theatres, but even for microscope illumination.
REMEMBERING THE DOWNFALL OF THE BERLIN WALL
November 9, 2009 - Germany
World leaders have remembered the twentieth anniversary of the fall of the Berlin Wall. German Chancellor, Angela Merkel, was joined by Russia's Dmitry Medvedev and France's Nicolas Sarkozy at the Brandenburg Gate. In a video address, Barack Obama told them that the Berliners had rebuked tyranny on November 9, 1989. Some 136 people are thought to have been killed whilst trying to escape through the Wall. Merkel, who grew up in East Germany, presided over the celebratory events, which were attended by tens of thousands of people.
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RANDOM QUOTES
A Change is Gonna Come
by Meredith Grey
"...Change; we don't like it, we fear it, but we can't stop it from coming. We either adapt to change, or we get left behind. It hurts to grow, anybody who tells you it doesn't is lying. But here's the truth: Sometimes the more things change, the more they stay the same. And sometimes, oh, sometimes change is good. Sometimes change is everything...."
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."..."
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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Find the lowest prices on Las Vegas horseback tours at Vegas Horseback Tours. Choose from a wide variety of Las Vegas Horseback Tours including breakfast, lunch, dinner and overnight rides. Book yo...
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