Ele Willoughby, PhD<p>Happy birthday to Danish <a href="https://spore.social/tags/seismologist" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>seismologist</span></a> Inge Lehmann (1888 – 1993) who demonstrated that the Earth’s core is not a single molten sphere, but contained an inner solid core, in ‘36. She was a pioneer <a href="https://spore.social/tags/womanInScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>womanInScience</span></a>, a brilliant seismologist & lived to be 105.<br><br>As she first postulated, the <a href="https://spore.social/tags/earth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>earth</span></a> has roughly 3 equal concentric sections: mantle, liquid outer core & solid inner core. The crust, on which we live is merely 🧵1/n</p><p> <a href="https://spore.social/tags/printmaking" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>printmaking</span></a> <a href="https://spore.social/tags/sciArt" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sciArt</span></a> <a href="https://spore.social/tags/geophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>geophysics</span></a> <a href="https://spore.social/tags/histstm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>histstm</span></a> <a href="https://spore.social/tags/seismology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>seismology</span></a> <a href="https://spore.social/tags/womenInSTEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>womenInSTEM</span></a></p>