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Fireworks

Blue and pink fireworks with black sky background.

Fireworks show how light travels faster than sound. We see the light almost instantly, but the sound arrives later. To work out how many kilometres away the fireworks are, count the seconds until you hear the bang and divide by 3.

Glossary

Rights: Image licenced through 123RF limited
Published: 14 March 2012Size: 87.73 KB
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