=== Book quotations ===
;Title: :Physical Properties of Lipids;Authors: :Alejandro G. Marangoni, Suresh Narine;Subject: :Fluorescence;Year: :2002;Link: :http://books.google.com/books?id=OCBav13l_MsC&pg=PA166&dq=rotational+correlation+time+radian&lr=;Quote (page 166): "<blockquote>The rotational correlation time [phi] is the timerequired by the fluorophore to rotate through an arc of 1 radian (phi= 1/(2.pi.nu))."</blockquote>
Title: Biophysics
Quote (page ?): " is the Larmor angular frequency in radians/sec and
tau_c is the rotational correlation time of the nuclei in sec/radian."
== Relaxation rates ==