Which group first actively experimented with chemicals by applying theory and not just experimental observations ?
The falsifiability item on the list is related to the criterion proposed by Popper as demarcating a scientific theory from a theory like astrology : both " explain " observations , but the scientific theory takes the risk of making predictions that decide whether it is right or wrong:Thomas Kuhn argued that changes in scientists ' views of reality not only contain subjective elements , but result from group dynamics , " revolutions " in scientific practice and changes in " paradigms " .