külgetõmbest

Külgetõmme, often translated as gravity, is a fundamental force of nature that attracts any two objects with mass. It is responsible for keeping planets in orbit around stars, for causing objects to fall to the ground, and for the formation of galaxies. The strength of the gravitational force between two objects depends on their masses and the distance between them. The more massive the objects, the stronger the gravitational pull. Conversely, the farther apart the objects are, the weaker the gravitational pull.

The concept of gravity was famously described by Sir Isaac Newton, who formulated the law of universal gravitation. This law states that every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. Later, Albert Einstein's theory of general relativity provided a more comprehensive understanding, describing gravity not as a force, but as a curvature of spacetime caused by the presence of mass and energy. This curvature dictates how objects move. While Newton's law is sufficient for most everyday calculations, Einstein's theory is essential for understanding phenomena in strong gravitational fields or at very large scales.