Salman Khan

Salman Khan is an electrical engineer who has started a free online academy with over 1,800 tutorials

Need some help with your homework? Look no further than Khan Academy.

The website features over 1,800 mini-lectures on subjects including mathematics, history, finance, physics, chemistry, astronomy, and economics.

All online tutorials are produced and narrated by Salman Khan, who has a master’s in electrical engineering and computer science from MIT. Usually under 15 minutes in length, the videos are low-tech and conversational, with Khan using step-by-step doodles and diagrams on an electronic blackboard to explain various concepts.

Khan Academy has become a web sensation: the videos are viewed 70,000 times a day and have received over 37 million views worldwide. Not only that, but all of the videos are available on YouTube as well.

The project started when Khan, who was living in Boston at the time, agreed to help tutor his cousins in New Orleans. Because of scheduling conflicts, he recorded videos for them on YouTube so that they could watch his explanations at their own pace.

When other users started tuning in, Khan realized he could provide a useful education to anyone, anywhere.

Image: Outlook India