Download Miss Leavitt’s Stars by George Johnson (.M4B)
Miss Leavitt’s Stars by George JohnsonRequirements: .M4A/.M4B reader, 49,1 MBOverview: A forgotten heroine of science and how she solved one of the crucial mysteries of the universe.How big is the universe? In the early twentieth century, scientists took sides. One held that the entire universe was contained in the Milky Way galaxy. Their champion was […]