Geocentric model knew about Tusi's work or that of the Maragha school. Not all Greeks agreed with the geocentric model. The Pythagorean system has already been mentioned; some Pythagoreans believed the Earth to be one of several planets going around a central fire. Hicetas and Ecphantus, two Pythagoreans of the 5th century BC, and Heraclides Ponticus in the 4th century BC, believed that the Earth rotated on its axis but remained at the center of the universe. Such a system still qualifies as geocentric. It was revived in the Middle Ages by Jean Buridan. Heraclides Ponticus was once thought to have proposed
Place attachment also capable of giving places significance; however, negative emotions are usually not associated with people-place bonding since place attachment represents individuals’ yearnings to replicate positive experiences and emotions. Cognition incorporates the knowledge, memories, and meanings that individuals or groups have associated with places of attachment. Specifically, these cognitive elements represent what makes specific places important enough for people-place bonding to develop. Environmental psychologists additionally use the term schema to describe how people organize their beliefs and knowledge in regards to places and has led some researchers to note familiarity as a central cognitive element in place attachment. This idea of