History_of_Geology, 1 month ago German

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 🌍

https://vox.com/2015/5/13/8595157/inge-lehmann?fbclid=IwAR3eWTiqLMHK7JemttD56dUP4yPr15JbqGQMv3bNBNS9BFe4BlsKs6Dv30A

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