A Moment of Science

Posts tagged pupil

February 13, 2009

 

Man wearing amber sunglasses

Amber Sunglasses

Amber tinted sunglasses make things appear much sharper because they block the blue and red parts of sunlight.

May 29, 2006

 

red_eye_flash

Why Red Eye?

What causes those glowing red eyes in photographs?

August 19, 2004

 

Why Squint?

Is squinting really that effective? Find out on this Moment of Science.

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