It is very rare that I go so far off-topic on my blog, but then again, it is very rare that I find something so cool. Salman Khan (khanacademy.org) has recorded over 1500 mini-lectures on a wide variety of topics, organized in a cohesive fashion and made available for free on YouTube. I have already spent several enjoyable hours watching his videos, and plan on spending many more. What he has put together is an act of generosity that deserves to be recognized.
This blog is inactive.New blog: EricWhite.com/blogBlog TOCAlong the same vein, the Feynman lectures on physics are very cool too.
a real service to students and humanity
a level biology..............biological molecule
its easy to understand without any help
give me the brife explanation of mitochondria
ITS REALY VERY HELPFUL TO ALL THE STUDENTS TO UNDERSTAND WITHOUT ANY HELP OF OTHERS
khan academy is a good help to every one
good jog and i am also thankful to him who provide us a good learning method...thanx
please send lecture about long day and short day plant