Existance of life on the Earth depends on the law of gravity. At the moment of fall all physical bodies gain acceleration of gravity which varies in different parts of our planet. This is the steady gain in speed caused exclusively by the force of gravitational attraction. At different points on Earth surface, the gravitational speed gain ranges from 9.764 m/s2 to 9.834 m/s depending on altitude and latitude, with a conventional standard value of exactly 9.80665 m/s2 (approximately 32.17405 ft/s2). For example, in Lithuania it is 9,81 m/s².