Brian Stewart, associate professor of physics, demonstrates positive and negative charges by using static electricity tubes.

<div class="at-above-post addthis_tool" data-url="http://newsletter.blogs.wesleyan.edu/2010/06/28/local-students-samples-sciences-at-wesleyan/wes_3290/"></div>Brian Stewart, associate professor of physics, demonstrates positive and negative charges by using static electricity tubes. <!-- AddThis Advanced Settings above via filter on get_the_excerpt --><!-- AddThis Advanced Settings below via filter on get_the_excerpt --><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons above via filter on get_the_excerpt --><!-- AddThis Share Buttons below via filter on get_the_excerpt --><div class="at-below-post addthis_tool" data-url="http://newsletter.blogs.wesleyan.edu/2010/06/28/local-students-samples-sciences-at-wesleyan/wes_3290/"></div><!-- AddThis Share Buttons generic via filter on get_the_excerpt -->