‘Physics can be defined as the study of matter and energy’.
Physics and Technology:
Rockets and space shuttles, magnetically levitating trains, and microscopic robots that fight cancer cells in our bodies. All these technologies, whether ordinary or exciting, are based on physics principles. Physics is behind every technology and plays a key role in further developing these technologies, such as airplanes, computers, PET scans, and nuclear weapons. The use of physics in information technology has improved the standard of communication. Mobile cell phones are commonly used even by illiterates. Hologram technology is a three-dimensional image, created with photographic projection. The hologram technology is also incorporated in cell phones.