/oss/taxonomy/term/2072/all en /oss/article/covid-19-videos/dr-joe-schwarcz-explains-graphene-face-masks <p><div class="media-youtube-video media-element file-default media-youtube-1"> <iframe class="media-youtube-player" id="media-youtube-2fnkgco1p4e" width="640" height="390" title="Dr. Joe Schwarcz explains graphene face masks" src="https://www.youtube-nocookie.com/embed/2fNKgCO1p4E?wmode=opaque&controls=&enablejsapi=1&modestbranding=1&playerapiid=media-youtube-2fnkgco1p4e&origin=https%3A//www.mcgill.ca&rel=0" name="Dr. Joe Schwarcz explains graphene face masks" frameborder="0" allowfullscreen>Video of Dr. Joe Schwarcz explains graphene face masks</iframe> </div> </p> <p> </p> Fri, 02 Apr 2021 21:43:02 +0000 Joe Schwarcz PhD 8680 at /oss /oss/article/you-asked/do-activated-charcoal-face-masks-actually-work <p>They are being talked about all over the Internet as a way of clarifying the skin and removing “toxins", but is there any science to back up the use of charcoal face masks?</p> Tue, 02 Jan 2018 16:49:47 +0000 Joe Schwarcz PhD 6858 at /oss /oss/article/environment-health/charcoal-one-most-important-substances-ever-discovered <p style="text-align:justify"><span>Burn any animal or vegetable matter with a limited supply of air, as is the case inside a wood pile, and you are left with charcoal, essentially carbon mixed with some mineral ash. The fact that charcoal burns better than wood was probably noted soon after man learned to control fire over a million years ago. The first use of charcoal for purposes other than providing heat was around 30,000 BC when cavemen used it as a pigment for drawing on the walls of caves.</span></p> Mon, 12 Oct 2015 08:52:36 +0000 Joe Schwarcz PhD 2291 at /oss