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Library / Buzz Science
Buzz Science

One science idea, every Friday

Short episodes with Meli. The idea comes first, then a small challenge to try.

Latest

Episode 10: Can air spin a light bulb?

How wind turbines work. Tap a slide to open it full size.

Slide 1: Can air spin a light bulb? Meli holds a pinwheel by the sea, with a wind turbine behind Slide 2: Where does wind come from? Warm air rises and cool air moves in, shown over a coast Slide 3: How a wind turbine works, with the blade, tower and generator labelled Slide 4: Double the wind, up to 8 times the power, shown with light bulbs Slide 5: Meli's Challenge: which way does the wind blow? Next episode: cooling without electricity
Illustrations
Watch Episode 10
Episode 9

How does sunlight become electricity?

Tap a slide to open it full size.

Slide 1: How does sunlight become electricity? Meli beside a rooftop solar panel Slide 2: Sunlight nudges electrons loose, shown inside a solar cell Slide 3: From the roof to your lights: sun, panel, inverter, home Slide 4: A sunny island has free fuel overhead, with rooftop panels on village homes Slide 5: Notice where the sun hits your home. Next episode: Wind
Illustrations
Watch Episode 9
All episodes

Episode list

Ep 10: Can air spin a light bulb?Watch
Ep 9: How does sunlight become electricity?Watch
Episodes 1 to 8Watch
Ep 11: Cooling without electricity23 Oct
Ep 12: Storing sunshine30 Oct
Ep 13: Clean rides6 Nov
Ep 14: The cheapest energy is the one you do not use13 Nov

Dates may move. Science figures are being reviewed, so tell us if you spot an error.

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