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[[Image:lighterstill.jpg]][[File:Quantum_mechanics_1a.jpg|right|frame]]
[[Image:lighterstill.jpg]][[File:Quantum_mechanics_1a.jpg|right|frame]]
==Definition==
==Definition==
*1. The [[fact]] or condition of [[being]] [[relative]], relativeness.
*1. The [[fact]] or condition of [[being]] [[relative]], relativeness.
*3. The [[relative]] grading of posts or salaries, usu. considered within one business (internal) or in comparison with others (external). Freq. pl.
*3. The [[relative]] grading of posts or salaries, usu. considered within one business (internal) or in comparison with others (external). Freq. pl.
<center>For lessons on the [[topic]] of '''''Relativity''''', follow [http://nordan.daynal.org/wiki/index.php?title=Category:Relativity '''''this link'''''].</center>
==Description==
==Description==
From 1905 to 1915 [[Albert Einstein]] revolutionized the [[concept]]ion of [[space]] and [[time]] and [[gravity]] that had been central in [[physics]] since [[Isaac Newton]].
From 1905 to 1915 [[Albert Einstein]] revolutionized the [[concept]]ion of [[space]] and [[time]] and [[gravity]] that had been central in [[physics]] since [[Isaac Newton]].