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1. Community
2. Content Requests and Feedback

So I was watching a few videos in the Physics Library, when I saw that some videos seemed older. They did not seem in continuation, so where are the ones which are missing? Sure, the old videos hav...

1. Community
2. Classroom Tips and Tricks

So I thought that watching videos from Khan Academy in a faster Playback speed would be better as it will let you study faster. I already have experience with this as I watch Anime in between 3 - 4...