Radiation

There were many technologies that were developed over past three centuries. Many of them proved useful to humans, some proved too lethal. But there exists am another version of technology which is lethal and deadly, but when used under proper surveillance it can be useful for humans. There are many such technologies such as gun powder, radiation, laser and biological instruments. The definition of radiation goes like this – “in an environment, if energy emitted by any one body present, travels through a medium and other object in the environment and finally absorbed by some other body”. This principle is the basic for the development and construction of modern day scanning machines that are capable of scanning the body or metal parts for defects. The electro-magnetic waves generally preferred this is because their strength can b controlled and they can be made to move in the direction we want (by introducing electrical and magnetic fields). Recoding of the received strength is also easy, this technology has made man to think about its wide application in the numerous fields it is used.