
Sign up to save your podcasts
Or


If a tree falls in a forest, and no-one is there to hear it, does it make a sound? This is an age-old debate that listener Richard and his family have been arguing about for years. Can CrowdScience settle it once and for all?
Caroline Steel speaks to experts in hearing, biology, philosophy, physics and sound design, which takes her to some unexpected places.
Professor Stefan Bleek is an expert in psychoacoustics who says that sounds only exist in our heads.
Things get truly weird as we delve into the strange implications of quantum physics. If there is such a thing as reality, doesn’t it change when we’re there to observe it? Does the tree even fall if we aren’t there?
Presenter: Caroline Steel
(Image: Fallen Tree. Credit: Getty Images)
By BBC World Service4.7
436436 ratings
If a tree falls in a forest, and no-one is there to hear it, does it make a sound? This is an age-old debate that listener Richard and his family have been arguing about for years. Can CrowdScience settle it once and for all?
Caroline Steel speaks to experts in hearing, biology, philosophy, physics and sound design, which takes her to some unexpected places.
Professor Stefan Bleek is an expert in psychoacoustics who says that sounds only exist in our heads.
Things get truly weird as we delve into the strange implications of quantum physics. If there is such a thing as reality, doesn’t it change when we’re there to observe it? Does the tree even fall if we aren’t there?
Presenter: Caroline Steel
(Image: Fallen Tree. Credit: Getty Images)

879 Listeners

1,921 Listeners

598 Listeners

90 Listeners

341 Listeners

965 Listeners

410 Listeners

411 Listeners

759 Listeners

733 Listeners

217 Listeners

332 Listeners

364 Listeners

241 Listeners

113 Listeners

0 Listeners

0 Listeners

0 Listeners

6 Listeners

13 Listeners

4 Listeners

1 Listeners

38 Listeners

0 Listeners

2 Listeners