This applet demonstrates random walk in two dimensions. The user can specify how many particles appear at the center of the circle and the mean free path as a fraction of the radius of the circle. The path lengths are randomized with an exponential distribution. A histogram shows the number of times each particle has been deflected before it escapes the circle. It also shows the mean number of scatterings and the standard deviation.
This is part of a larger collection of applets by STEM Colorado focused mostly on topics in astronomy.
Please note that this resource requires
at least version 1.4.2_06 of
Java.
<a href="http://www.compadre.org/astronomy/items/detail.cfm?ID=7937">McCray, Richard, and Andrew Koelemay. STEM Colorado: Random Walk. August 29, 2008.</a>
R. McCray and A. Koelemay, STEM Colorado: Random Walk (2004), WWW Document, (http://scatter.colorado.edu/STEM-TPSoft/java/javaapps/randomwalk2/RandomWalk2App.jnlp).
McCray, R., & Koelemay, A. (2008, August 29). STEM Colorado: Random Walk. Retrieved May 23, 2013, from http://scatter.colorado.edu/STEM-TPSoft/java/javaapps/randomwalk2/RandomWalk2App.jnlp
McCray, Richard, and Andrew Koelemay. STEM Colorado: Random Walk. August 29, 2008. http://scatter.colorado.edu/STEM-TPSoft/java/javaapps/randomwalk2/RandomWalk2App.jnlp (accessed 23 May 2013).
McCray, Richard, and Andrew Koelemay. STEM Colorado: Random Walk. 2004. 29 Aug. 2008. 23 May 2013 <http://scatter.colorado.edu/STEM-TPSoft/java/javaapps/randomwalk2/RandomWalk2App.jnlp>.
@misc{
Author = "Richard McCray and Andrew Koelemay",
Title = {STEM Colorado: Random Walk},
Volume = {2013},
Number = {23 May 2013},
Month = {August 29, 2008},
Year = {2004}
}
%A Richard McCray %A Andrew Koelemay %T STEM Colorado: Random Walk %D August 29, 2008 %U http://scatter.colorado.edu/STEM-TPSoft/java/javaapps/randomwalk2/RandomWalk2App.jnlp %O application/java
%0 Electronic Source %A McCray, Richard %A Koelemay, Andrew %D August 29, 2008 %T STEM Colorado: Random Walk %V 2013 %N 23 May 2013 %8 August 29, 2008 %9 application/java %U http://scatter.colorado.edu/STEM-TPSoft/java/javaapps/randomwalk2/RandomWalk2App.jnlp
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