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dimension |
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dimensionIn science, any directly measurable physical quantity such as mass (M), length (L), and time (T), and the derived units obtainable by multiplication or division from such quantities. For example, acceleration (the rate of change of velocity) has dimensions (LT−2), and is expressed in such units as km s−2. A quantity that is a ratio, such as relative density or humidity, is dimensionless. In geometry, the dimensions of a figure are the number of measures needed to specify its size. A point is considered to have zero dimension, a line to have one dimension, a plane figure to have two, and a solid body to have three. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| `Really this is what is meant by the Fourth Dimension, though some people who talk about the Fourth Dimension do not know they mean it. Or if this postulate is as untenable as all the others, still I am very glad that I did not then lose any fact of the majesty, and beauty, and pathos of the great certain measures for the sake of that fourth dimension of the poem which is not yet made palpable or visible. Among themselves they communicate by means of what Perry says must be a sixth sense which is cognizant of a fourth dimension. |
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