Scientific Theorie
in cience, a theory i a reaonable eplanation of oberved event that are related. a theory often involve an imaginary model that help cientit picture the way an oberved event could be produced. a good eample of thi i found in the kinetic molecular theory, in which gae are pictured a being made up of many mall particle that are in contant motion.
a ueful theory, in addition to eplaining pat obervation, help to predict event that have not a yet been oberved. after a theory ha been publicized, cientit deign eperiment to tet the theory. if obervation confirm the cientit prediction, the theory i upported. if obervation do not confirm the prediction, the cientit mut earch further. there may be a fault in the eperiment, or the theory may have to be revied or rejected.
cience involve imagination and creative thinking a well a collecting information and performing eperiment. fact by themelve are not cience. a the mathematician jule henri poincare aid, cience i built with fact jut a a houe i built with brick, but a collection of fact cannot be called cience any more than a pile of brick can be called a houe.
mot cientit tart an invetigation by finding out what other cientit have learned about a particular problem. after known fact have been gathered, the cientit come to the part of the invetigation that require coniderable imagination. poible olution to the problem are formulated. thee poible olution are called hypothee.WWw.hAOZuowEn.com
in a way, any hypothei i a leap into the unknown. it etend the cientit thinking beyond the known fact. the cientit plan eperiment, perform calculation, and make obervation to tet hypothee. without hypothei, further invetigation lack purpoe and direction. when hypothee are confirmed, they are incorporated into theorie.