Steven Fowkes

1. Hamjamiyat
2. Content Requests and Feedback
3. Ponzi Scheme Math

Maybe a good example would be to do the math for the Social Security system, which is a fully legal Ponzi scheme.

1. Hamjamiyat
2. Content Requests and Feedback
3. How does one contribute to Khan Academy's course content?

Akshat---  I just wrote up a loose outline for a module in chemistry on new arrangements of the periodic table, integrated a few example illustrations, and posted it in this forum. If you are just ...

1. Hamjamiyat
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3. Derivative intuition module created by Ben Eater

Is there a way that this content can be accessed while down?