Dr. Adam Johnston shows a chart on how ballet dancers defy gravity during his “Physics of the Mudane” seminar. (The Signpost/ Christina Huerta)Dr. Adam Johnston shows a chart on the trajectory of a dancer’s center of mass during his “Physics of the Mudane” seminar. (The Signpost/ Christina Huerta)Dr. Adam Johnston uses tape to demonstrate electron attraction during his “Physics of the Mudane” seminar. (The Signpost/ Christina Huerta)Dr. Adam Johnston shows a chart on the trajectory of a dancer’s center of mass during his “Physics of the Mudane” seminar. (The Signpost/ Christina Huerta)Dr. Adam Johnston discusses how ballet dancers defy gravity during his “Physics of the Mudane” seminar. (The Signpost/ Christina Huerta)Dr. Adam Johnston gives a demonstration on static electricity during his “Physics of the Mudane” seminar. (The Signpost/ Christina Huerta)Dr. Adam Johnston gives a demonstration on static electricity during his “Physics of the Mudane” seminar. (The Signpost/ Christina Huerta)Dr. Adam Johnston answers questions during his “Physics of the Mudane” seminar. (The Signpost/ Christina Huerta)Dr. Adam Johnston uses tape to demonstrate electron attraction during his “Physics of the Mudane” seminar. (The Signpost/ Christina Huerta)Dr. Adam Johnston discusses how ballet dancers defy gravity during his “Physics of the Mudane” seminar. (The Signpost/ Christina Huerta)