Square distance on lame

2007/03/19 Roa Zubia, Guillermo - Elhuyar Zientzia

• Fisika
• Astronomia

Perhaps it is necessary to correct the most famous formula of Isaac Newton, which serves to calculate the force of gravity. The problem is the influence of distance. The force of gravity is becoming weaker as the distance between the two bodies increases, it is the speed at which it weakens. Newton realized that the doubling of the distance did not weaken the force twice, but four times, so in the formula of force he put the square of the distance in the divider. Astronomers have used this formula to calculate, among other things, the movement of galaxies. But the calculated and measured do not coincide. Galaxies should have more mass to move according to Newton's gravitational force. Therefore, astronomers recognized that there is much matter not seen in galaxies: dark matter. Many search attempts have been made, but if this matter exists it has not been detected. This problem has another solution: Change Newton's formula. It would not be a very big change. Physicists calculate that in Newton's formula divider, the square of distance is not accurate; gravitational force weakens slightly more slowly as distance increases. This small change would be enough to explain the movement of galaxies. It is a very innovative proposal, so before changing Newton's formula they want to see the effect of the new formulation on Earth's orbit. If the physicists' hypothesis is correct, they will detect the effect and, in addition to Newton's formula, they will have to review the theory of dark matter.