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Perception
Bird in a Cage: Do the experiment

Do you have a staring problem?
Bird in a Cage: Introduction

Make a bird appear in a cage using only your eyes. 

Science activity that demonstrates distances with a composite reflection
Your Father's Nose

Sometimes, you’re your partner’s splitting image.

Science activity that demonstrates lateral inhibition in visual perception
Lateral Inhibition

Which is in control, your eyes or your brain?

Science activity that demonstrates the dominant eye phenomena
Circles or Ovals?

Your brain combines information from your eyes in surprising ways.

Science activity that demonstrates a visual illusion
Overlapping Spots

Make a bright spot brighter.

Science activity that demonstrates an optical illusion
Hole in Your Hand

What happened to your whole hand?

Colored Shadows: Introduction

Add and subtract colors to learn about human perception.

What We're Reading

by • June 19, 2015

Start your weekend with some of the top science news of the week. 

Science activity that explores visual perception
Reverse Masks

Eye'll be seeing you.

Science activity investigating spectroscopy
CD Spectroscope

Turn an old CD into a spectroscope to analyze light.

Gestalt
Living in Ambiguity

by Josh Bacigalupi • June 9, 2015

Sometimes, contradictory creations intrigue us because this is reality.

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