Science One measurement project

Here is my first ever measurement project I wrote a short paper for at UBC.

As for the quality….just keep in mind it was my first such paper.

All rights reserved.

Title: Mapping the Echoes of the Echo Circle at Wyman Plaza

Author: Tiffany Tong

Abstract

The echo properties of the Echo Circle at Wyman Plaza of the University of British Columbia were measured with two wooden sticks as a sound source and Audacity as the recording program. The results provided support to the hypotheses of the middle platform being the focal point of the circle and of the sound waves reflecting off the right angle of the circle to form echoes.

Introduction

The Echo Circle at Wyman Plaza of the University of British Columbia has very interesting echoing properties. If one stands on top of the platform in the middle and makes a sufficiently loud sound, one can hear its echo on the platform, but nowhere else. My hypothesis is that the sounds waves made inside the circle bounce off of the right angles made by the circular seats around the platform and reflect back to the original place where the sound was made. Also, the middle of the circle, where the platform is, should be the focal point of the circle-the echoes should have the largest intensity at the focal point. In this experiment I used the program Audacity to measure the time intervals between the spikes in the graphs, which indicate echoes, to determine where in the circle the sound sources reflect.