May 12 is International Women in Mathematics Day. Danish seismologist Inge Lehman developed a mathematical model based on her research on seismic waves, demonstrating that #Earth has a solid inner core 🌍
May 12 is International Women in Mathematics Day. Danish seismologist Inge Lehman developed a mathematical model based on her research on seismic waves, demonstrating that #Earth has a solid inner core 🌍