This short, inspiring video introduction to the “Stealth” wind turbine by imikewillrockyou shows a simple design of home electricity generator that is really elegant! This is a Vertical [...]

Calculus Derivatives and Limits Reference Sheet - Includes Chain Rule, Product Rule, Quotient Rule, Definition of Derivatives, and even the Mean Value Theorem. Great resources for those in Calculus 1 or even AP Calculus AB.