Why Does Light Bends Around Corners?

Examples

1. A flashlight beam spreads out around a corner of a room like water waves spreading after hitting a rock.
2. You can see sunlight coming through small gaps in curtains, even when most of the window is covered.
3. Light bends around your fingers when you hold them up to a bright light source.

More examples

See also

• What is mirage?
• How Mirrors Reflect Objects Even When There's Space Between Them
• What are pink or red skies?
• Why Can't We See the Moon During the Day?
• What is refraction?

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