Books by Tracey Hecht. The Ominous Eye: The Nocturnals, Book 2. Written by Tracey Hecht with illustrations by Kate Liebman - Magic, Children's 7 - 11, Fantasy, Fiction, Friendship, Humor, Youth Fiction. When a violent jolt fractures the earth, the Nocturnal Brigade sets out to investigate its source.
Isaac Newton laid the blueprints for his three laws of motion, still recited by physics students, in 1666. Credit: Library of Congress Isaac Netwon is synonymous with apples and gravity.
The laws are named after German astronomer Johannes Kepler (1571 - 1630), who proposed them in the early 1600s. Kepler was able to summarize the carefully collected data of his mentor-Tycho Brahe-with three statements that described the motion of planets in a sun-centered solar system.