Well basically loads of fish thought that life would be great if they confused the whole lot of us so juggled our thoughts to make the solar models complicated and then 12 giraffes stood beside each planet and then 7 turned invisible and confused everyone but the fish who were all having a good laugh at us while they sipped tea on Uranus.
In the Ptolemaic system, the motions of Mercury, Venus, Mars, Jupiter, and Saturn were described with epicycles. These epicycles were small circles that the planets were thought to move in while also orbiting the Earth on larger deferent circles.
An "orrery" is a mechanical contraption, most no bigger than a desktop, that simulates the planets in their revolution around the sun. More complicated (and expensive) models also simulate the planets' rotation on their axes, and the revolution of some of the planets' satellites around their respective planets.
The scientific explanation lies in Kepler's laws of planetary motions, which were discovered by Newton to be linked with the law of gravity. All the planets have elliptical orbits, and many of those are close being circular.
The motions of the planets are primarily controlled by gravity, which is the force of attraction between all masses in the universe. In our solar system, the Sun's gravitational pull governs the orbits and movements of the planets. The precise motions of the planets are also influenced by their initial velocities and the conservation of angular momentum.
The primary force that determines the motions of planets and other objects in the solar system is gravity. This force, described by Newton's law of universal gravitation, causes celestial bodies to attract one another, leading to the orbits of planets around the Sun and the moons around their respective planets. Additionally, Einstein's theory of general relativity refines our understanding of gravity, illustrating how massive objects warp spacetime, further influencing these motions.
A model of a solar system, complete with planets, is a great project for children. The two main types of solar system models are box models and hanging models. A large ball, such as a foam ball or toy ball, can be used to represent the sun. The planets can be represented using Styrofoam balls.
Orreries or planetariums are mechanical models of the solar system that can simulate the movement of planets relative to each other at their actual velocities. These models are often used to study and visualize the dynamics of the solar system.
Yes, the sun's mass is a crucial factor in controlling the motions of the planets in our solar system. The sun's gravitational force keeps the planets in orbit around it, shaping their paths and governing their speeds. The more massive an object, like the sun, the stronger its gravitational pull on surrounding objects.
The Ptolemaic model of the universe placed Earth at the center with other planets and the Sun in circular orbits around it. One flaw is the complicated system of epicycles and deferents needed to explain the retrograde motion of planets. Additionally, it could not predict planetary positions as accurately as the heliocentric model due to its geocentric nature.
Solar System models, especially mechanical models are called orreries.
in a heliocentric system earth and the other planets revolving planet's a geocentric system ,earth is at the center of the revolving planets
The device used for showing the movement of the stars and planets on a curved ceiling is called an orrery. This mechanical model demonstrates the relative positions and motions of celestial bodies in the solar system.