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Radioactive Decay For night lighting ???



 
 
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Old April 5th 07, 02:09 PM posted to alt.astronomy
G=EMC^2 Glazier[_1_]
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Default Radioactive Decay For night lighting ???

Using the weak force to light the center divider on streets. To light
poles. To add to paint so cars glow.(orange). Yes there was a time you
could buy paint that glowed in the dark. It was outlawed,but could we
block out the harmful radiation and just let light photons through?
Most accidence happen because we have big troubles seeing when the Sun
has gone down. Best to keep in mind radioactive energy is just about
free. We spend a lot of money producing light. Bert

  #2  
Old April 6th 07, 09:00 AM
Bork Bork is offline
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Originally Posted by G=EMC^2 Glazier[_1_] View Post
Using the weak force to light the center divider on streets. To light
poles. To add to paint so cars glow.(orange). Yes there was a time you
could buy paint that glowed in the dark. It was outlawed,but could we
block out the harmful radiation and just let light photons through?
Most accidence happen because we have big troubles seeing when the Sun
has gone down. Best to keep in mind radioactive energy is just about
free. We spend a lot of money producing light. Bert

"Wris****ches with radium-painted luminous dials became a fad almost overnight. The first large factory to produce the glowing watches, the Radium Luminous Materials Corporation, was opened in 1917, in Orange, N.J. Soon, other companies opened plants in Connecticut and Illinois. Several million radium watches and clocks and instrument dials were made through World War II.

The glowing numerals had to be hand-painted onto the watch dials, a delicate task deemed women's work. Dr. Claudia Clark, a professor of history at Central Michigan University who wrote ''Radium Girls'' (University of North Carolina Press, 1997), said the dial painters worked in ''studios,'' where they mixed their own paint from a powdered base. The workers, some as young as 15, painted about 250 dials a day for a cent and a half apiece, five and a half days a week.

Within a few years, some of the young women became horribly ill from their exposure to radium, and some died. They have become a notorious chapter in the history of occupational disease.

Dr. Clark estimates that 4,000 women were dial painters.

Until sometime in the 1920's, the women were encouraged to use a technique called ''lip-pointing,'' which meant using their lips and tongues to shape their paintbrushes to a fine tip. Not only were their mouths and teeth bathed in radium all day, but the women probably swallowed and inhaled it as well, and they often went home so coated with radioactive paint dust that they glowed in the dark. Unaware of any risk, some painted their lips, teeth, eyelids, fingernails and the buttons on their clothes with the luminous solution.

Meanwhile, more knowledgeable employees in other parts of the plant were beginning to use protective gear and shields when working with radium. And in 1921, while the dial-painting studios were in full swing, Marie Curie visited America and was presented with one gram of radium -- which was enclosed in a 110-pound, lead lined casket.

The dial-painters' first health problems turned up in the 1920's, when some of the women began suffering from fatigue, anemia and trouble with their teeth. When dentists tried to extract the bad teeth, they were horrified to find jawbones so diseased that chunks of bone came out as well. The extraction sites didn't heal, and infections set in.

In many cases, the women's bodies were actually radioactive, because radium had been absorbed by their bones. Government researchers studied live and dead dial painters and used the data to calculate safe exposure levels for future generations of workers.

By 1923, five young women from the Orange plant had died from a condition that came to be called ''radium jaw.'' The same thing had begun happening to dial painters in Connecticut and Illinois. As more time passed, some of the women developed bone cancers."

http://query.nytimes.com/gst/fullpag...gewanted=print
 




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