New Material Provides Constant Light For 12 Years Without a Power Source
MPK, a company that has made a name producing glow-in-the-dark paint, has developed self-luminous micro particles called Litrospheres. The new material is said to be inexpensive (35 cents to light up a 8 ½ x 11 piece of plastic that is 1/8" thick), non-toxic, and capable of staying constantly lit for over 12 years thanks to a betavoltaic technology that uses a radioactive gas.
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