1. The Planets Move (2000 B.C.– 500 B.C.) A thousand years of observations reveal that there are stars that move in the sky and follow patterns, showing that the Earth is part of a solar system of planets separate from the fixed stars.
2. The Earth Moves (1543) Nicolaus Copernicus places the sun, not the Earth, at the center of the solar system.
3. Planetary Orbits Are Elliptical (1605 – 1609) Johannes Kepler devises mathematical laws that successfully and accurately predict the motions of the planets in elliptical orbits
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Discovery School - 100 Greatest Discoveries – Medicine
1. Human Anatomy (1538) Andreas Vesalius dissects human corpses, revealing detailed information about human anatomy and correcting earlier views. Vesalius believes that understanding anatomy is crucial to performing surgery, so he dissects human corpses himself (unusual for the time). His anatomical charts detailing the blood and nervous systems, produced as a reference aid for his students, are copied so often that he is forced to publish them to protect their accuracy. In 1543 he publishes De Humani Corporis Fabrica, transforming the subject of anatomy.
2. Blood Circulation (1628) William Harvey discovers that blood circulates through the body and names the heart as the organ responsible for pumping the blood. His groundbreaking work, Anatomical Essay on the Motion of the Heart and Blood in Animals, published in 1628, lays the groundwork for modern physiology.
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Tour the towers that made history and altered the future. Why was New York’s most famous skyscraper dubbed the "Empty State Building?" How big is Japan’s planned "supertower?" Tour the world’s most incredible skylines with award-winning author-illustrator- and captivating storyteller- David Macaulay and trace the amazing stories of skyscrapers. They introduces courageous creators, recounts little known history, and reveals supersized triumphs through spectacular film footage and dramatic recreations.
