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21 YoYo Powered iPhone Charger? Hank Green 18476
22 Self-Powered Light Switch Has No Wires Hank Green 42614
23 2 Million New Jobs by 2010 with Green Investment Jaymi Heimbuch 18052
24 Green Competition is a Good Thing Jaymi Heimbuch 16074
25 Cool Revolving Door Concept for Powering Up Jaymi Heimbuch 16797
26 Terasen Trying to Power Homes with Human Poo Peg Fong 19253
27 Capturing the Power of viagra low price Trillions of Footfalls Raegan Payne 66900
28 Strap-on Kinetic Charger Dances Away Dead Batteries Jaymi Heimbuch 29559
29 Running America on Liposuctioned Fat Hank Green 17109
30 Spinnaker’s Steps May Generate Power from Your Footfall Jaymi Heimbuch 18262
31 Old-Fashioned Hand Crank Powers New-Fangled Gadgets Jaymi Heimbuch 25355
32 Bike Trees Save Space and Keep Bikes Safe Hank Green 18182
33 Cheap Electric Bike Saves Cash...But at What Cost Peg Fong 30138
34 Electro-SeeSaw Harnesses World's Most Energetic Thing Zach Yakush and Hank Green 24110
35 Solar Bicycle Boat Built for Four Hank Green 23118
36 50 Miles Per Burrito: Is the Body the Most Efficient Vehicle? Hank Green 48723
37 Carectomy Week in Review Joshua Liberles 18576
38 Carectomy Week in Review Joshua Liberles 17539
39 Gravia Floor Lamp: Human Powered, Never Burns Out Hank Green 24623
40 Revolution Door Captures Human Power Hank Green 22493
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