Today’s Woman in STEM is Mary Somerville. Born in Scotland in 1780, she wrote 7 influential science books in her lifetime, earning the Patron's Medal of the Royal Geographical Society for "Physical Geography" in 1869. She and Caroline Herschel were also the first women honorary members of the Royal Astronomical Society. She is currently featured on the back of the Royal Bank of Scotlands ten pound note with a quote from her fourth book "The Connection of the Physical Sciences". As this book is well out of copyright, the ebook can be found for free, digitised by the Gutenberg Project, here.