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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 the strong-willed astronomer Harlow Shapley. Another camp believed that the universe was so vast that the Milky Way was just one galaxy among billions―the view that would prevail, proven by the equally headstrong Edwin Hubble.
Almost forgotten is the Harvard Observatory computer―a human number cruncher hired to calculate the positions and luminosities of stars in astronomical photographs―who found the key to the mystery. Radcliffe-educated Henrietta Swan Leavitt, fighting ill health and progressive deafness, stumbled upon a new law that allowed astronomers to use variable stars―those whose brightness rhythmically changes―as a cosmic yardstick. Miss Leavitt's Stars is both a masterly account of how we measure the universe and the moving story of a neglected genius.
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Most authentic book compilation on the Oregon Trail I ever read. The way the diaries are brought to life from over 170 years ago is a remarkable achievement. Top book of year so far for me for today June 01, 2024 review Candice
This author is a breathe of fresh air in a world of lies and coverups. He brings ancient writings and new science to bring light to mankind. In this amazing work, the well known plato stories from antiquity are now put alongside this new discovery of tablets from beginning of time. This is the most complete explanation of Atlantis every brought to the public. Shame on the governments of Egypt and the world for hiding WHO BUILT THE PHYRAMIDS OF GIZA AND THE SPHINX. Once I read this book I knew why they hid this knowledge. They don't want a population to know how great the world used to be compared to know.
Randomly stumbled upon this book and I am shocked that I haven’t heard about it before. It’s hands down the best story I’ve read in years. People need to read this book. It needs to be turned into a book. This story is just plain awsome. M
This soulful book of personal poetry brought me into the past and into the present---and into my heart.
Read the first book and this 2nd one did not disappoint! Loved every chapter. More please!