Early Muslims escape Quraysh persecution by migrating to Medina in 622. With …
Early Muslims escape Quraysh persecution by migrating to Medina in 622. With Medina as the base of their community, they are able to convert Mecca and most of Arabia to Islam during the remainder of the life of Muhammed (next 10 years).
The early life of Muhammad including his work as a merchant, his …
The early life of Muhammad including his work as a merchant, his marriage to Khadijah, his early revelations and the persecution of early Muslims by his own Quraysh tribe.
This is the second of two videos where Sal derives Bernoulli's equation. …
This is the second of two videos where Sal derives Bernoulli's equation. In the second half of the video Sal also begins an example problem where liquid exits a hole in a container. Created by Sal Khan.
This 14-minute video lesson provides an overview of B cells (B lymphocytes) …
This 14-minute video lesson provides an overview of B cells (B lymphocytes) and how they are activated and produce antibodies. [Biology playlist: Lesson 53 of 71].
This 9-minute video lesson looks at how CAM Plants are able to …
This 9-minute video lesson looks at how CAM Plants are able to fix carbon at night so they don't have to keep their stomata open during the day. [Biology playlist: Lesson 34 of 71].
This 10-minute video lesson discusses how cytotoxic T-Cells get activated by MHC-I/antigen …
This 10-minute video lesson discusses how cytotoxic T-Cells get activated by MHC-I/antigen complexes and then proceed to kill infected cells. [Biology playlist: Lesson 56 of 71].
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