The Right Chemistry: P.T. Barnum Was a Champion of Critical Thinking

<p><div class="media-youtube-video media-element file-default media-youtube-1"> <iframe class="media-youtube-player" id="media-youtube-it2cuyu5ncu" width="640" height="390" title="Dr. Joe Schwarcz: P.T. Barnum was a champion of critical thinking" src="//www.youtube.com/embed/IT2cuyU5NCU?wmode=opaque&enablejsapi=1&modestbranding=1&playerapiid=media-youtube-it2cuyu5ncu&rel=0" frameborder="0" allowfullscreen>Video of Dr. Joe Schwarcz: P.T. Barnum was a champion of critical thinking</iframe> </div> </p>