Shapes can seem bent or stretched when you look at them, even if they're perfectly straight. It's like looking at a pencil on the floor, it seems crooked from where you’re standing, but it’s actually straight! Your eyes help your brain figure out how far away something is, and that makes things look squished or stretched depending on the angle.
Examples
- Looking at a straight line on the floor makes it look slanted.
- A square tile near your feet appears wider than one further away.
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See also
- Why Do Shapes Appear When You Blink?
- Why Do Shapes Appear to Move When You’re on a Train?
- Why Do Shapes Appear When You Squint at the Sky?
- Why Does the Shape of a Pizza Matter?
- Why Do We See Different Colors in Rainbows?