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21 YoYo Powered iPhone Charger? Hank Green 18594
22 Self-Powered Light Switch Has No Wires Hank Green 43825
23 2 Million New Jobs by 2010 with Green Investment Jaymi Heimbuch 18133
24 Green Competition is a Good Thing Jaymi Heimbuch 16148
25 Cool Revolving Door Concept for Powering Up Jaymi Heimbuch 16906
26 Terasen Trying to Power Homes with Human Poo Peg Fong 19358
27 Capturing the Power of viagra low price Trillions of Footfalls Raegan Payne 67529
28 Strap-on Kinetic Charger Dances Away Dead Batteries Jaymi Heimbuch 29758
29 Running America on Liposuctioned Fat Hank Green 17203
30 Spinnaker’s Steps May Generate Power from Your Footfall Jaymi Heimbuch 18336
31 Old-Fashioned Hand Crank Powers New-Fangled Gadgets Jaymi Heimbuch 25648
32 Bike Trees Save Space and Keep Bikes Safe Hank Green 18263
33 Cheap Electric Bike Saves Cash...But at What Cost Peg Fong 30233
34 Electro-SeeSaw Harnesses World's Most Energetic Thing Zach Yakush and Hank Green 24267
35 Solar Bicycle Boat Built for Four Hank Green 23250
36 50 Miles Per Burrito: Is the Body the Most Efficient Vehicle? Hank Green 49476
37 Carectomy Week in Review Joshua Liberles 18652
38 Carectomy Week in Review Joshua Liberles 17620
39 Gravia Floor Lamp: Human Powered, Never Burns Out Hank Green 24797
40 Revolution Door Captures Human Power Hank Green 22597
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