How The Mound Got Its Quack

The New College Mound has a peculiar feature - when you stand in front of it and clap, it can return with the sound very much resembling a duck's quack. Why? 

Felix Flicker, Astor Junior Research Fellow in Physics, has been on the case.

 

PDF icon How the Mound Got Its Quack.pdf 

Mound and City Wall