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Optics
Light bending, bouncing and focusing — from a straw in a glass to fibre optics.
4 lessons~2hno sign-up
Light bending, bouncing and focusing — from a straw in a glass to fibre optics.
4 lessons~2hno sign-up
Why a straw in water looks bent — and how fibre optics work.
How a magnifying glass, camera, and eye all use the same equation.
Why your bathroom mirror flips left-right but not up-down.
The angle past which light can't escape water — and how fibre optics exploit it.