Summary: Frequency is measured by the rate at which the vocal cords vibrate. We hear frequency as pitch. The laughter in some men can be as high as a soprano's high C, and in women, laughter can reach the pitch of an octave higher than that.<div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/WfiuAMomentOfSciencePodcast?a=Nwl8h8e-Sss:ROGWtXAqtOk:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/WfiuAMomentOfSciencePodcast?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.feedburner.com/~ff/WfiuAMomentOfSciencePodcast?a=Nwl8h8e-Sss:ROGWtXAqtOk:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/WfiuAMomentOfSciencePodcast?i=Nwl8h8e-Sss:ROGWtXAqtOk:F7zBnMyn0Lo" border="0"></a> <a href="http://feeds.feedburner.com/~ff/WfiuAMomentOfSciencePodcast?a=Nwl8h8e-Sss:ROGWtXAqtOk:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/WfiuAMomentOfSciencePodcast?i=Nwl8h8e-Sss:ROGWtXAqtOk:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.feedburner.com/~ff/WfiuAMomentOfSciencePodcast?a=Nwl8h8e-Sss:ROGWtXAqtOk:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/WfiuAMomentOfSciencePodcast?d=qj6IDK7rITs" border="0"></a> <a href="http://feeds.feedburner.com/~ff/WfiuAMomentOfSciencePodcast?a=Nwl8h8e-Sss:ROGWtXAqtOk:gIN9vFwOqvQ"><img src="http://feeds.feedburner.com/~ff/WfiuAMomentOfSciencePodcast?i=Nwl8h8e-Sss:ROGWtXAqtOk:gIN9vFwOqvQ" border="0"></a> <a href="http://feeds.feedburner.com/~ff/WfiuAMomentOfSciencePodcast?a=Nwl8h8e-Sss:ROGWtXAqtOk:TzevzKxY174"><img src="http://feeds.feedburner.com/~ff/WfiuAMomentOfSciencePodcast?d=TzevzKxY174" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/WfiuAMomentOfSciencePodcast/~4/Nwl8h8e-Sss" height="1" width="1">
