ELEMENTARY PARTICLES -- IS THAT ALL THERE IS TO US? From: The Boston Globe | Date: February 15, 1993| Author: Chet Raymo | Copyright 1993 The Boston Globe. Provided by ProQuest LLC.Copyright information

"Darling, you and I know the reason why

The summer sky is blue,

And we know why birds in the trees

Sing melodies too."* Songwriter Meredith Willson, who wrote these lyrics, thought he knew why the sky is blue and birds sing. Nobel-prize-winning physicist Steven Weinberg thinks he knows too.

The sky is blue because air molecules scatter short-wavelength blue light more effectively than they do other colors of the spectrum. The singing of birds is explained by mo...

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