Talk:Airbending/@comment-110.55.10.239-20120430052826

In medievel times people classified matter in four substances earth, water, fire, wind until modern science change everything and classified matter in the elements of the periodic table and it's forms a solid, liquid, and gas, we know the earth, water, and wind, is the basis for understanding matter while fire is different it is classified as a form of energy so fire is energy. The fundamental interactions in particle physics determines the interaction of matter to energy and they are gravitation, electromagnetism, weak nuclear force and strong nuclear force. Matter in other word earth, water and wind is classified as gravitation and gravity determines the weight and pressure depending on a objects mass and how strong the gravitational field is because all forms of physical matter has it's own gravitational field we just never realize it when groups of gravitational fields are drawn to one another the weaker ones get supressed then follows the strongest gravitational force in other words the earth and everything on it.