/oss/taxonomy/term/2443/all en /oss/article/health-videos/right-chemistry-darkness-and-blue-light-bedtime <p></p><div class="media-youtube-video media-element file-default media-youtube-1"> <iframe class="media-youtube-player" id="media-youtube-ckyqbpdja6g" width="640" height="390" title="Dr. Joe Schwarcz on darkness and blue light at bedtime" src="https://www.youtube-nocookie.com/embed/CkYQBPDja6g?wmode=opaque&controls=&enablejsapi=1&modestbranding=1&playerapiid=media-youtube-ckyqbpdja6g&origin=https%3A//www.mcgill.ca&rel=0" name="Dr. Joe Schwarcz on darkness and blue light at bedtime" frameborder="0" allowfullscreen="">Video of Dr. Joe Schwarcz on darkness and blue light at bedtime</iframe> </div> Fri, 14 Feb 2020 16:40:01 +0000 Joe Schwarcz PhD 8112 at /oss /oss/article/health-videos-technology/cracked-science-29-are-screens-bad-children <p><div class="media-youtube-video media-element file-default media-youtube-2"> <iframe class="media-youtube-player" id="media-youtube-lnolwlvqyy" width="640" height="390" title="Are Screens Bad for Children? (CS29)" src="https://www.youtube-nocookie.com/embed/-lNolWLvqYY?wmode=opaque&controls=&enablejsapi=1&modestbranding=1&playerapiid=media-youtube-lnolwlvqyy&origin=https%3A//www.mcgill.ca&rel=0" name="Are Screens Bad for Children? (CS29)" frameborder="0" allowfullscreen>Video of Are Screens Bad for Children? (CS29)</iframe> </div> </p> Sat, 16 Mar 2019 10:00:00 +0000 Jonathan Jarry, MSc 7649 at /oss /oss/article/did-you-know-technology/mood-ring-technology-powers-your-lcd-tv <p>A substance is said to exhibit thermochromism if it changes colour according to temperature. The most popular example of this is <a href="https://en.wikipedia.org/wiki/Mood_ring">mood rings</a>, the hot fashion item of the 70s. These pieces of jewelry contain <a href="https://en.wikipedia.org/wiki/Liquid_crystal">liquid crystals</a> (the same liquid crystals responsible for your LCD TVs) sealed underneath a (usually fake) gemstone.</p> Wed, 05 Sep 2018 17:45:18 +0000 Ada McVean B.Sc. 7331 at /oss /oss/article/did-you-know/smelly-screens <p>Screens that smell like food are in our very near future? Invented by scientists at the Tokyo University of Agriculture and Technology in Japan, these ”smelling screens” makes smells appear to come from the exact spot on any LCD screen that is displaying the image of a particular food. It works by continuously feeding odours from vaporizing gel pellets into four air streams, one in each corner of the screen. These air streams are blown out parallel to the screen’s surface by fans, and varying the strength and direction of them manoeuvres the scent to any given spot on the screen.</p> Thu, 25 May 2017 00:17:12 +0000 OSS 2493 at /oss