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 Tycho Brahe  Johannes Kepler  The magic of inertia | ||||
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RATINGS: Sites are rated from 1 owl (good) to a high of 5 owls. Read more- Sir Isaac Newton
Isaac Newton was only 25 when he was elected Lucasian professor of mathematics at Cambridge, a position currently held by Stephen Hawking. But despite his precocious genius, he recognized his debt to others: "If I have seen further it is by standing on the shoulders of Giants." This biographical website reveals numerous personal and scientific aspects of Newton through pictures, primary sources, anecdotes, and essays.
Newton and the Apple Read some firsthand accounts of what really happened with Newton and the apple
- Gravity and Inertia
Inertia can be a tricky concept to understand, but this Sciencemonster.com webpage does a pretty good job of explaining it in terms of Newton's first law of motion. A gavity game called "Lunar Lander" caps off the lesson.
- Speeding Space Shuttle
Once it gets into space, the shuttle becomes a satellite, orbiting the Earth until completion of the mission, when it "drives" back. Once it stops forward thrusting, gravity keeps it from drifting away. The Why Files presents a short look at gravity and the space shuttle.
- Galileo: The Telescope and the Laws of Dynamics
Galileo was the first person to use the telescope to systematically study the heavens. He discovered the phases of Venus, the moons of Jupiter, and even the Milky Way. But it was Galileo's more down-to-earth experiments with motion and weights that led him to his conclusions about inertia, which formed the basis of Newton's first law. This college website covers the achievements of Galileo and has some animations of his experiments and conclusions.
- Newton's First Law
Here's a succinct statement of Newton's first law of motion: "objects tend to keep on doing what they're doing." The Physics Classroom breaks the law down into its two parts (rest and motion), discusses some everyday illustrations of the law, and offers an animation that gives a whole to meaning to the phrase "Buckle up! It's the law."
- Dialogue Concerning Two New Sciences
On whose shoulders did Newton stand? Galileo's, for one. At this University of Virgina website, visitors can read actual excerpts from the book that greatly influenced Newton's ideas on motion: Galileo's Dialogue Concerning Two New Sciences.
Newton's First Law
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