2012 BFY Abstract Detail Page
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Abstract Title: 
Improving the quantification of Brownian motion 
Abstract: 
A classic experiment for visualizing a random walk is to observe a small, micronsized particle undergoing Brownian motion in a microscope. In recent years this simple experiment has been upgraded to include a cheap camera and tracking software to allow students to measure the mean squared displacement of the particle over time. Given the random walk equation and the StokesEinstein diffusion coefficient, the students can calculate a number of interesting parameters: the viscosity of the medium, the radius of the bead, and the temperature of the liquid, to name a few. We will describe our implementation of this experiment at Amherst College, focusing on the improvements that have increased the ease of use of the exercise. 
Abstract Type: 
Poster

Contributed Poster: 
Download the Contributed Poster

Author/Organizer Information 
Primary Contact: 
Ashley Carter
Amherst College
Merrill Science Center
Amherst,
MA
01002
Phone: 4135422593

CoAuthor(s) and CoPresenter(s) 
Marco Catipovic Amherst College Merrill Science Center Amherst, MA 01002

