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Posts tagged vision

May 21, 2013


The box jelly has a distinctive four-sided structure

The Alien ‘Brain’ Of The Box Jelly

The box jelly has evolved a central nervous system unlike any other animal on Earth.

May 15, 2013


blue eye close up

Change Blindness And The Mysteries Of Vision

Vision may not involve creating an inner model of the world in the brain.

February 1, 2013


Blue sky with sun reflecting

Blue Sky + Looking Up = Seeing Tiny Dots And Swirls

Have you ever been staring into space, or gazing up at a clear, blue sky and suddenly noticed clusters of tiny dots and swirls?

April 3, 2012


a journal with a latin palindrome and the words

Getting It Backwards

Why are letters reversed in a mirror? Try this experiment with pen and paper.

March 19, 2012


target on target range

Ready, Aim, Shoot! How Marksmen Use Heartrate To Shoot

Research shows that marksmen shoot most accurately when their hearts' rhythm increases from eight to twenty beats per minute over their resting heart rate.

January 24, 2012


two people laying in the grass with their hands over their eyes

Night Vision And Humans: Why Can’t We See Color?

When we are in a fairly dark room, or outside at night away from lights, we can still see, but we can't see the colors of things very well. Why is that?

November 15, 2011


thaumatrope creation

What Is A Thaumatrope?

Did you know that the thaumatrope was invented by an English physician named J. A. Paris in 1926?

May 6, 2011


man in 3d glasses

3D: Harmful To The Eyes?

3D TV and movies seem to be all the rage but are they harmful to eyes?

November 12, 2010


Corner of a room

Visual Systems, Binocular Vision, And Wall Color

Why does the corner of the room, where two walls and the ceiling meet seem to show two different wall colors?

May 27, 2010



Debunking Common Eye Myths

When it comes to common eye myths, what is true and what is false?

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