Subsequently, there is gravitational force between objects, so just place two iron balls C and D of the same mass near the two iron balls A and B on the torsion balance.
Then gravitational force F1 will be generated between A and C, and gravitational force F2 will be generated between B and D.
The magnitudes of the two gravitational forces are different, somewhat resembling a tug of war in later generations.
So at this time, the torsion balance will slightly deflect, and the reflected far point will also move a greater distance.
According to Cavendish's experiment records.
He calculated the density of the Earth to be 5.481 times that of water, which is 5.481 grams per cubic centimeter.
Compared with the data of the 21st century, this is only a 0.65% error.
As for the gravitational constant G, Cavendish actually did not calculate it, after all, the cognitive system at that time was still not fully developed.
