Who was Sir Isaac Newton?
Q: Who was Sir Isaac Newton?
A: Sir Isaac Newton was an English physicist, mathematician, and astronomer.
Q: What is he well known for?
A: He is well known for his work on the laws of motion, optics, gravity, and calculus.
Q: What book did he publish in 1687?
A: In 1687, Newton published a book called the Philosophiæ Naturalis Principia Mathematica in which he presents his theory of universal gravitation and three laws of motion.
Q: What did he invent in 1668?
A: In 1668, Newton built the first practical reflecting telescope.
Q: How did Newton explain light?
A: Newton developed a theory of light based on the observation that a prism decomposes white light into the colors of the rainbow.
Q: Who else shares credit with him for developing calculus?
A: Newton shares credit with Gottfried Leibniz for developing calculus.
Q: How long did his ideas dominate physics until they were modified by Albert Einstein's theory of relativity?
A: His ideas on light, motion, and gravity dominated physics for the next three centuries until they were modified by Albert Einstein's theory of relativity.
