Physics Home

Students in the Thin Films Laboratory Photograph: John E. Consoli

Physics has had an increasingly important impact on the average person's daily life.  For example, physicists played an essential role in the development of:
  • The Transistor -- the basis of all modern electronics, inlcuding radio, television, computers, and telecommunications.
  • The Laser and Laser Diodes -- now used widely in CD players, grocery bar code scanners, medical treatment, and telecommunications.
  • The Digital Computer -- much of the early development (and some of the most recent) have been motivated by basic physics research.
  • Fiber Optics -- now finding widespread application in high-speed data and voice transmission networks
  • The Global Positioning System -- uses satellites and precise timing to allow positions to be located to within a few feet anywhere on the surface of the Earth
  • The Hologram -- used on credit cards, drivers' licenses, and other documents to prevent fraud.
  • The World Wide Web -- originally designed by physicists. 
  • Medical Imaging Techniques -- such as the sonogram, the CAT scan, and Magnetic Resonance Imaging (MRIs).
  • Medical Treatment Techniques -- using radiation and charged particle accelerators.
  • New Micro-Sensors -- for "smart machines" and "smart buildings," faster and smaller computers, computer disks that can store more information in a smaller space, improved chemical processing to help the environment and reduce energy use, faster and cheaper telecommunications.
In addition: 
  • Many pioneers in molecular biology were trained as physicists, e.g., Francis Crick, one of the two discoverers of DNA.
  • A large number of astronomers were also trained as physicists
Based in part on a Web page of the American Institute of Physics located at http://www.aip.org/success.


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