If the world is round then how come we don fall off?
We are held to the earth by gravity. This gravitational force emanates from the center of the earth. So everything on the surface of the earth experiences a “pull” toward the center of the earth. Although the earth is very close to being round, it is actually an oblate spheroid. EDIT: Scythian is correct about the earth catching falling objects. Cut and paste: Newton’s first law of motion is that an object tends to continue in its motion at a constant velocity until and unless an outside force acts on it. The term velocity refers both to the speed and the direction in which an object is moving. For example, suppose that you shoot an arrow into space. Newton’s first law says that the arrow will continue moving in the direction you aimed it at its original speed until and unless some outside force acts on it. The main outside forces acting on an arrow are friction from air and gravity. However, that law doesn’t really apply to humans standing on the earth. They are held to the earth by g
