Episode details
Available for over a year
Helen Czerski demonstrates how coffee granules can change the speed of sound in hot water (Image: Coffee granules in a glass with water being poured in. Credit: ThinkStock)
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Available for over a year
Helen Czerski demonstrates how coffee granules can change the speed of sound in hot water (Image: Coffee granules in a glass with water being poured in. Credit: ThinkStock)
Programme Website