What is the torsion balance?
The torsion balance is a device invented to measure very small forces, such as gravitational forces between small materials or magnetic forces between charged balls. The torsion balance consists of a horizontal rod with the same ball at both ends. The horizontal rod rotates to the wire that supports it on Wednesday. The repaired small balls of the same materials or charges are located near the balls at the ends of the rotating bars, attracting them and causing the wire to turn. The amount of reversal in the wire can then be mathematically converted to the amount of force between stationary balls and those on the movable rods.
When the masses of spheres are known in torsion balance, scientists can calculate the gravitational constant to put in Newton's inverse square law on gravity. Small forces between the spheres of unknown matter can be inferred from these results. The forces between the stationary spheres of unknown matter and the moving spheres of the known matter are found by observing the number, how many times the horizontal rod turns back and forth at the time. FThe propellers of the movement of the rod is related to the torsion voltage in the wire from which the unknown forces can be calculated.
In 1783, physicist Charles-Augustin de Coulomb published his discovery that an inverse square law, first designed by Newton to describe gravitational forces, could be applied to attractive or repulsive magnetic charges. According to Coulomb's law, they required attractive or repulsive forces between objects due to their magnetic characteristics of the constant, Coulomb Force Constant. When fees are known for moving and solid spheres of torsion, the constant can be calculated. Subsequently, solid spheres of unknown cartridges could be installed and the attractive or repulsive forces between them and moving spheres can be calculated by measuring the frequency of movement back and back the horizontal rod.
Thegradual leveling of torsion has become more sophisticated and accurate in their measurements. ScientistsThey noted that by providing the horizontal rod in balance the initial pressure, the extremely low resistance of the metal atoms in a thin wire supporting the pole can cause it horizontally to turn back and forth. The relationship between torsional tensions in the metal wire, when it is exposed to endless forces between spherical bodies, continues to successfully measure unknown in inverse square law equations.