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<a accesskey="3" href="page.php?w=length_scale&amp;p=2">3.Next</a>
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<p>In <a href="page.php?w=physics">physics</a>, <b>length scale</b> is a particular <a href="page.php?w=length">length</a> or <a href="page.php?w=distance">distance</a> determined with the precision of at most a few <a href="page.php?w=orders_of_magnitude">orders of magnitude</a>. The concept of length scale is particularly important because physical phenomena of different length scales are said to <a href="page.php?w=coupling_%28physics%29">decouple</a>, i.e. they can be separated and studied independently. In other words, the decoupling of different</p><p>
<a accesskey="3" href="page.php?w=length_scale&amp;p=2">3.Next</a>
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