Physicists investigate 'best friends forever'

Some friendships are short and fleeting, while others may last years. Although a wide variety of factors go into determining the strength of our relationships, the long-lasting ones seem to share a number of the same characteristics, according to a recent study.

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<p><a href="http://www.physorg.com/news128075710.html">Physicists investigate 'best friends forever'</a></p> <p>Some friendships are short and fleeting, while others may last years. Although a wide variety of factors go into determining the strength of our relationships, the long-lasting ones seem to share a number of the same characteristics, according to a recent study. </p>