Your Personal YouTube Digest - Jul 15, 2012 Latest subscription updates Find more channels nptelhrd Play all » Mod-01 Lec-06 Binary Systems (Contd.) Jul 12, 2012 Mod-01 Lec-36 CMBR and Thermal History... Jul 12, 2012 Mod-01 Lec-21 White Dwarfs Jul 12, 2012 Mod-01 Lec-26 Dynamics of the Expanding... Jul 12, 2012 Follow YouTube: Unsubscribe Email Preferences © YouTube 2012