In physics, a physical body or physical object (sometimes simply called a body or object) is a collection of masses, taken to be one. For example, a football can be considered an object but the ball also consists of many particles (pieces of matter).
The common conception of physical objects includes that they have extension in the physical world, although there do exist theories of quantum physics and cosmology which may challenge this.
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Famous quotes containing the words physical and/or body:
“For my part I do, qua lay physicist, believe in physical objects and not in Homer’s gods; and I consider it a scientific error to believe otherwise.”
—Willard Van Orman Quine (b. 1908)
“When once—which every body must be—you are convinced of the wickedness and deceit of men, it is impossible to preserve untainted your own innocence of heart. Experience will prove the depravity of mankind, and the conviction of it only serves to create distrust, suspicion—caution—and sometimes causelessly.”
—Frances Burney (1752–1840)