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Posts tagged blue

January 26, 2012

 

blue sky with clouds

Why The Sky Is Not Blue

This is partly due to pollution, but even in the cleanest air the sky is lighter near the horizon due to the effect of earth's atmosphere on sunlight.

October 31, 2011

 

a hand holding a yellow highlighter

Seeing Yellow

Why is yellow still the most popular highlighter color?

October 17, 2011

 

Orange full moon behind a tree branch

That Spooky Orange Glow

Why is the moon sometimes orange or red? Why is the sky blue? These questions are closely related!

June 30, 2005

 

Blue Birds Ain’t Blue

One of the loveliest sights an ornithologist runs across is the iridescent blue found in some birds’ plumage. Sure, cardinals have red feathers and finches have yellow feathers, but if you ever run across the gleaming, almost metallic-looking blue of an indigo bunting, you won’t forget it. The colors shimmer and shine like oil on water. Learn more on this Moment of Science.

September 27, 2003

 

Why It Isn’t Easy Being Blue

Ever wonder if you can actually turn blue while holding your breath? Find out on this Moment of Science.

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