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CrowdScience

If a tree falls in a forest does it make a sound?

Duration: 40 minutes

on BBC World Service Europe and the Middle East

Available for over a year

If a tree falls, and there’s no-one there to hear it, does it make a sound? An age old question that’s puzzled for centuries. Can CrowdScience settle it once and for all? Show more

BBC World Service Europe and the Middle East

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This data is drawn from the data stream that informs BBC's iPlayer and Sounds. The information shows what was scheduled to be broadcast, meaning it was/is subject to change and may not be accurate. More