Maddie explains how a lighthouse works

Maddie visits a red and white striped lighthouse. She goes inside where the bulb is kept and finds out how all the reflective glass that surrounds it helps make the light stronger. Then she uses a special drone camera that flies out to sea!

Full episodes of Maddie's Do You Know? are available on iPlayer now!

CBeebies is dedicated to delighting and surprising its pre-school audience and it remains the UK's most watched and most loved channel for the under-sixes.

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CBeebies is dedicated to delighting and surprising its pre-school audience and it remains the UK's most watched and most loved channel for the under-sixes.

#CBeebies