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Posts tagged pigment

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

 

Rainbow Snow

Did you know that snow in some parts of the world can appear colorful? Learn more on this Moment of Science: Rainbow Snow.

September 27, 2003

 

Can You Recognize a Plant Cell?

Can you recognize a plant cell? Learn about distinguishing a plant cell from an animal cell, on this Moment of Science.

September 27, 2003

 

Albinism

Lack of pigment also makes eyes extremely sensitive to bright light. The pigment that determines whether your eyes are blue, brown, green, or gray normally helps to filter out stray light.

September 27, 2003

 

Why Lips Go Dry

Today, on A Moment of Science, why lips go dry. Let’s start by reviewing the ways in which the surface of our lips is different from the surface of the skin on the rest of our bodies. Basically, our lips are made of the same mucus membrane that coats the inside of our mouths. This […]

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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