http://articles.mercola.com/sites/articles/archive/2006/01/10/using-physics-to-debunk-magic.aspxDr. David Willey, a physics instructor at the University of Pittsburgh who has become famous for debunking extraordinary physical feats through simple physics principles, reveals the secrets to several "magical" feats, including walking barefoot on brokenenCommunityServer 2008.5 SP1 (Build: 31106.3070)