Science is Magic

55

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SCIENCE

PART...

THE

This is all about how your

brain calculates distances.

When you look at something close up,

you cross your eyes more than when you

look at a faraway object. Your brain uses

this to determine distances, but these

pictures use a special pattern to play a

trick. When you look through the image,

your eyes become less crossed and you

see double. The pattern then overlaps with

itself and everything looks normal again,

just a little farther away. Some parts of

the picture have been slightly adjusted so

your eyes are more or less crossed. It’s here

that the “hidden” image becomes visible.

IMAGE IMAGE

HIDDEN

IMAGE

Crossing your

eyes tells your

brain how far

away an object is.

The hidden image

looks like it’s

farther away.

NOW TRY THIS

THE GLASS METHOD

You can try another

technique on this

image. Place the

picture behind some

flat glass. Look at

your reflection in

the glass, then try

to focus back on

the picture without

moving your eyes.

All will be revealed!

You can also use the

dots trick on this one.

Turn to page 96 to find out what images are hiding on these pages.

US_054-055_Hidden_pictures.indd 55 12/09/2018 15:49