character: Isaac Newton
topic: Gravitational Theory
subject: Science
LearnActions
SearchCreate
character: Galileo Galilei
topic: Early Studies of Motion and Gravity
subject: Science
LearnActions
SearchCreate
character: Johannes Kepler
topic: Laws of Planetary Motion
subject: Science
LearnActions
SearchCreate
character: Albert Einstein
topic: General Relativity and Gravity
subject: Science
LearnActions
SearchCreate