Zoom: From Atoms And Galaxies To Blizzards And Bees: How Everything Moves - Plot & Excerpts
Edwin Hubble is credited with discovering the expansion of the universe in 1929, but there’s never a mention of the woman who lurked behind the scenes. Henrietta Leavitt was a brilliant astronomer in the early 1900s, at a time when women were so discriminated against that the best she could do was make thirty cents an hour performing menial “computing” at the Harvard College Observatory. Nonetheless, she single-handedly discovered star families and found she could determine a star’s absolute brightness from the colors it emitted. Hubble used her data and her method to calculate galaxy distances, which let him make the astonishing announcement that the universe is inflating like a balloon. Her credit? Nearly zero. 2. What might it mean if everything in the cosmos got larger simultaneously? Could you possibly perceive any change if your eyes, your body, the wavelengths of light, the room, the planet, and the whole universe suddenly tripled in size during the next few seconds? The answer is no.
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