1 Tony Suchit, March 8, 2009 at 5:03 p.m.:

This lecture was realy cool. I am was researching for my laser and solar lab and came across the lecture. Wow it really explains what we did in class. It is worth downloading and keeping for revision.

2 shanid, August 13, 2009 at 3:49 p.m.:

is very good, informative and helpful

3 Jok Ping, Yap, August 30, 2009 at 6:19 a.m.:

Excellent lecture! Very useful!

4 aparajita nath, November 25, 2009 at 4:40 p.m.:

excellent,.......never seen a lecturer ne better!!! cool!!

5 ilayaperumal, July 3, 2010 at 3 p.m.:

excellent lecture!!!!!!!!

6 tazeen, November 26, 2011 at 9:21 a.m.:

just awsome

7 tushar, April 3, 2012 at 12:23 p.m.:

excellent lecture