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Nuclear Safety Sources

Wal-Mart's glow-in-the-dark mystery

Tyler Hamilton

15 Feb 2009

Toronto Star

Retail giant can't account for 15,800 of its exit signs that contain a potentially dangerous radioactive gas

Q: The orbits of the Sun and Earth are elliptical and constantly changing. This combined with the Sun's varying energy output has what relationship to climate change?

A: One of the greatest scientists of the 20th century, Serbian astrophysicist Milutin Milankovitch, developed a mathematical theory of climate based on the geometry you are asking about. More >>

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	Emerald City Left Out In The Cold March 11, 2010 Residents in Seattle were left with chills earlier this week, as the temperature dropped to 28 degrees (F) Monday night—tying a record set in 1956. The recent cold spells comes after weeks of unseasonably warm weather—which weather forecasters have said were a result of El Niño. Read More>>

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Nuclear Safety Sources

Wal-Mart's glow-in-the-dark mystery

Emerald City Left Out In The Cold