/oss/taxonomy/term/3395/all en /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