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Posts tagged light

August 16, 2019

 

A Spoon’s Double Vision

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?

August 13, 2019

 

Your Shadow’s Halo

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. 

August 9, 2019

 

When The Sky Turns Green

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.

April 23, 2019

 

The Electric Color Elephantnose Fish

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

May 25, 2018

 

Sleep 1 and Sleep 2

There's proof that until the 17th century, people's natural sleep patterns were to sleep when it first got dark, wake up for a few hours, and then have another extended sleep.

May 9, 2018

 

Your Phone And Computer Screens Are Keeping You Awake

The blue light from your phone can trick your retinal cells into thinking it's daytime.

May 3, 2018

 

The Elastic Ruler

Today, we have a simple activity about perception that you can accomplish with a pot of water and a ruler.

April 30, 2018

 

Spring Light

How do plants at the bottom of forest floors get enough light?

April 17, 2018

 

Polarized Lake Light

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

January 23, 2018

 

An iridescent soap bubble

Soap Bubbles and Butterflies

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

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