Gravity, that force that unites objects in proportion to their mass, and the one responsible for the fact that if you drop something on the Earth, it will fall downwards, instead of falling upwards, is a fairly complex subject. This universal force causes pieces of matter to join together to form planets like ours, and stars like our Sun. Without it our body would undergo many changes, since muscles, bones, even blood, feel gravity and thanks to her body works as it does.
Although we hardly think about gravity in our daily lives, we must realize that it defines the way we interact with the world. We grow within its limitations and, as we have said, our heart and our entire organic system depend on it.
Any object that has mass exerts a gravitational force or attraction on any other mass. The force of this pull depends on the mass of the objects in play. Gravity is what keeps the planets in orbit around the sun and the moon around Earth.
In school, we learn some basic ideas about gravity, but because of how important this physical force is, many end up adapting misconceptions and gaps in understanding it.
What is the theory of gravity? According to NASA, gravity is “the force by which a planet or other body draws objects toward its center. The force of gravity keeps all planets in orbit around the Sun.” Thus, anything that has a mass of any kind will exert or be under the influence of gravity . Therefore, objects with greater mass also have more gravity, and the force weakens the further you are from a center of mass.
Is gravity on Earth stronger somewhere than another? Does it change from one place to another on Earth? Is there any place on Earth where there is no gravity? Can one cry in space? Today we will explore these and other questions about gravity.
