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
Baby Einstein videos, DVD's and toys will entertain, inspire and mentally stimulate baby over and over again. The reputable shows combine well-known classical music with images of toys and objects that will encourage movement, interaction and even teach toddlers to use sign language! Make baby and family happy today with these unique Baby Einstein Gift Baskets and start building a library of DVDs for the newest member of the family
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.
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.
Disney Educational - Bill Nye The Science Guy: Wind
What causes wind? Storms? Why are there powerful winds on a day when there are no clouds in the sky? Why do we get gentle winds some days, and blustery, annoying winds on another? According to Bill Nye, the sun's energy controls all the wind on Earth. In Bill Nye the Science Guy: Wind, he demonstrates how it all works, in a way that the average ten-year-old can readily understand. Hot air, cold air, and the spinning Earth work together to produce varying velocities of wind.
