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Fun Science: Optical IllusionWhich is Tallest?
Scientists use optical illusions to study how the brain allows itself to be tricked. Can you be fooled? Try an experiment and see.
You will need
Blue Men The diagram at right

Here's How
Which figure is the tallest? You may be surprised to learn that all of the figures are the same height. Measure them to prove it.

Why?
The lines in this picture come together in such a way that they create an illusion of depth, which tricks you into thinking the figures are different sizes.

Try another illusion trick.

Text by Julie Vosburgh Agnone
Art by Gregg Valley

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