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 botanist Robert Brown presented the concept of Brownian motion in 1827. He observed pollen grains in water under a microscope and saw that the pollen grains are moving here and there (random movement) in water. This movement was named as the Brownian motion.