"If a tree falls in a forest, and there is no one arround to hear it, does the tree make a noise?"

Asked by: Joris

In my opinion yes, as a scientist I must believe that rules within physics always apply. Therefore a falling tree gains kinetic energy through the gravitational force acting on it. When touching the ground or another object this energy is transfered through friction and vibrations from all objects affected by the fall. These vibrations cause the air to vibrate and therefore generate sound.

Ask a question.

If you have a (personal) question you can use this form to ask it directly to me. I will try to reply to every question as good as possible by mail, so please leave an email adress at which I can contact you. Useful questions will be put on this page so it can be used to easily help other people who have the same questions.