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Posts tagged light

November 17, 2016

 

Blue vein in wrist

True Blue Inside of You?

Did you ever hear that blood is actually blue inside your body, but turns red instantly on contact with air? Learn more on this Moment of Science.

October 20, 2016

 

A blue background. A woman in the center of the photograph. Most of her is obscured because of a yellow-orange glow caused by a light leakage.

Afterglow

If you look at a bright lamp and then close your eyes, why can you still see the light?

June 3, 2016

 

green door with handle

The Green Door

We don't perceive color in our peripheral vision because we have no cones, which sense light frequencies, on the outer edge of our retina.

November 26, 2015

 

luminol splatter

A Moment of Crime

Investigators shine a light on crime scenes mysteries with the help of luminol—a luminescent chemical that reacts with blood.

July 14, 2015

 

contact lens

Making Contact 

Contact lenses bring objects into closer and clearer focus than glasses.

January 1, 2015

 

Earth's atmosphere and moon

Looking for Signs of Life on Earth

The light in Earth's atmosphere may reflect signs of extraterrestrial life.

November 14, 2014

 

Privet Hawkmoth

The Color of Dark

Hawkmoths not only have excellent night vision, but they can distinguish between colors in the dark.

May 27, 2014

 

Macro image of a moth facing the camera

Why Moths Fly Toward Lights

Summer is nearly here. Ever wonder why moths fly toward bright lights? Find out on today's Moment of Science.

May 1, 2014

 

A side view of a silver and black archer fish

The Archerfish: Nature’s Squirt Gun

Your old Super Soaker was pretty cool, but it didn't have precision like this.

March 26, 2014

 

A reindeer in walking in green grass

Reindeer Eyes

Researchers have found that depending on the season, the eyes of Arctic reindeer change from gold to blue.

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