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Posts tagged vision

February 23, 2017

 

Ghostly fogbow over ocean

A Rainbow’s Ghostly Cousin

Fogbows are created in much the same way as normal rainbows are. The main difference is the size of the water droplets which affect the light's refraction.

February 16, 2017

 

A photograph of what appears to be a pond. Green-brown algae is on the edges. In the middle of the photograph and the pond, you can see below the water's surface. What you can see is seaweed. A few dark blue spaces.

A Fishy Gaze

Green sunfish can see quite well in water that is thick and murky. How?

December 19, 2016

 

A close up on an eagle owl's face.

Staring Eyes and Swiveling Necks

Why are owls such efficient predators? Large eyes and flexible necks.

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.

April 27, 2016

 

starry sky captured in long-exposure

Autokinetic Effect

Eye movements can cause you to mistakenly perceive isolated objects as moving.

March 7, 2016

 

cloud in the shape of a deer with antlers

Pareidolia

From the man in the moon to the Virgin Mary's face on a cinnamon roll, humans have a tendency to see things that aren't there.

March 1, 2016

 

Mona Lisa through glass bottle

Mona Lisa’s Mysterious Smile

Mona Lisa's smile appears and disappears as we alternate between peripheral and central vision.

October 8, 2015

 

dung beetle in black in white

The Eye of the Dung Beetle

Dung beetles use moonlight's polarization to guide its dung hunts.

July 14, 2015

 

contact lens

Making Contact 

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

February 24, 2015

 

mother and baby stare into each others' eyes

Infants Get Cues From Adult Eyes

Parents' line of vision is eye-catching to infants.

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