Saint Louis University

What is Physics?

Physics is the branch of science that studies the nature of matter, energy, and spacetime at the most fundamental level. It provides a foundation for all the natural sciences and engineering disciplines. In the twentieth century alone, physics has brought such revolutions as relativity, quantum mechanics, and the big bang theory, profoundly altering the way mankind views the universe.

Physicists have played a major role in the discovery of many new phenomena leading to whole new technologies. The invention of the transistor, by physicists, has made the computer possible, while the development of lasers has led to diverse applications ranging from laser surgery to supermarket scanners.

The role of a physicist as a versatile problem-solver able to succeed in a wide variety of technical fields is perhaps less widely appreciated. A training in physics leads to a broad-based understanding of natural phenomena, analytical and computer skills, experience with electronics and the operation of sophisticated equipment, an understanding of measurements and their limitations, and the ability to formulate and solve technical problems. These skills are transferable and equip the physicist for a wide variety of careers. For instance, physicists work in all fields of engineering, in software development, computer science, medicine, technical law, and finance.

More information on the field of Physics can be found on the web site of the American Physical Society . Interesting Physics news and articles can be found here. And more physics topics from the APS Physics Central can be found at this link .

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Higher purpose. Greater good.
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