Galen Translation On Other Language: Aelius Galenus or Claudius Galenus (; ; September 129 AD â /), better known as Galen of Pergamon , was a prominent Greek physician, surgeon and philosopher in the Roman empire.
Khan Academy is a 501(c)(3) nonprofit organization, mostly funded by donations coming from philanthropic organizations. In 2010, Google donated $2 million for creating new courses and translating content into other languages, as part of their Project 10100. program.
$0.00. 1  Pros Completely Free. 2  Cons Video markup can be onerous. 3  Bottom Line With a growing repository of free tutorials and exercises, Khan Academy enables tech-savvy learners, particularly U.S. K-12 students interested in STEM fields, to supplement existing knowledge and to explore new topics.