Tennis-ball towers

As a physicist and keen tennis player, I would like to share an amusing "discovery" I recently made. In my office, I have about 20 used tennis balls and so decided to try building some tennis-ball "pyramids".

https://iopscience.iop.org/article/10.1088/2058-7058/32/5/24/pdf

Two balls stuck by friction on an incline, and a four ball pyramid

Two balls on an incline can remain at rest if friction between the balls prevents them rolling down the incline. Results with various balls are presented to show how ball mass, diameter and friction affects the outcome. A stack of four identical balls is also examined.

https://iopscience.iop.org/article/10.1088/1361-6552/ab9958/meta

Physics World: Tennis-ball towers

Tennis-ball pyramids created by Andria Rogava, a physicist and tennis player.

https://prod-physicsworld-iop.content.pugpig.com/blog/2019/04/19/tennis-ball-towers/pugpig_index.html

Tennis Ball Structures

facebook Gruppe

https://www.facebook.com/rogavatennisballstructures/