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Channel: light – A Moment of Science

Soap Bubbles and Butterflies

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If you have some dish soap, a mug, and a bright light, we have a science experiment for you to try.

Polarized Lake Light

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Sometimes, under the right circumstances, you'll see a mysterious dark patch in an otherwise wonderfully reflective lake. Why?

Spring Light

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When people talk about springtime they usually talk about warm weather or melting snow or the robins returning. But for most living things the real sign of spring is increasing sunlight. The sun is higher in the sky at noontime on a spring day than at noon on a winter day. And the sun is […]

The Elastic Ruler

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Here’s a fun demonstration you can do at home with your kids. All you need is a ruler and a saucepan full of water. Hold the ruler vertically and lower it half-way into the water on the side of the pan farthest from you. Bring your eye down to a position just a little higher […]

Your Phone And Computer Screens Are Keeping You Awake

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Lately, it seems like everyone I know has the same problem: When it’s time for bed, they don’t feel sleepy. While there can be many reasons for why someone’s sleep schedule changes, including aging, researchers have identified a potential cause as artificial lighting, and especially the computer and phone screens that play an ever-present role […]

Sleep 1 and Sleep 2

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You probably feel like your sleeping schedule is out of whack in some manner. Either you sleep too much, too little, or wake up too often. In fact, the typical eight hour uninterrupted sleep is what's really unnatural. Learn more on this Moment of Science.

The Electric Color Elephantnose Fish

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In 2018 biologists reported that the elephantnose fish can sense qualities they called “electric colors.”

When The Sky Turns Green

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As sunlight enters our atmosphere, it bends slightly.  This is due to refraction, the same thing that makes a pencil look slightly askew when you stick it half way into a glass of water.

Your Shadow’s Halo

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A "heiligenshein," is German for halo.  This is a glowing light around the head and shoulders of your shadow. It's likely to be seen by early morning golfers on dewy grass. 

A Spoon’s Double Vision

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Look at the back of a spoon and your reflection appears right side up.  Look into a spoon's bowl, and your reflection's upside down. How come?


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