Peter Drake<p>Article on a chemist in some college's alumni magazine: "For a lecture on superconductors, she brought a sample of the superconducting material yttrium barium copper oxide that students could handle.</p><p>Chemistry students often think, 'this is painful'..."</p><p>Wikipedia: It does so "at about 93 K (−180.2 °C; −292.3 °F)".</p><p>Me: Yes, I imagine that would be painful.</p><p><a href="https://mstdn.social/tags/chemistry" class="mention hashtag" rel="tag">#<span>chemistry</span></a> <a href="https://mstdn.social/tags/superconducting" class="mention hashtag" rel="tag">#<span>superconducting</span></a> <a href="https://mstdn.social/tags/brr" class="mention hashtag" rel="tag">#<span>brr</span></a></p>