Recent content by hackit

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    High School Exponential Growth: Cool Lecture & How to Calculate Doubling Time

    Cool lecture on exponential growth http://sciencehack.com/videos/view/F-QA2rkpBSY The video shows how to calculate the doubling time by dividing 70 by the growth rate. So for a 7% growth rate, the doubling time is 10 years.
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    High School Mastering the Rubik's Cube: Advanced Strategies and Speed Cubing Techniques

    Nice MrJB, Thanks!
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    High School Mastering the Rubik's Cube: Advanced Strategies and Speed Cubing Techniques

    Some tutorials that helped me learn the Rubik's Cube: http://sciencehack.com/pages/page015 I'd like more complex ones though with a focus on strategy and speed cubing. Any ideas?