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61 Sun - Wind - Strength: Bike Add-On Creates Power Hank Green 42997
62 Power Output of Healthier Americans: 3650 gWh/year Hank Green 24156
63 Bike Rack Air Pump Philip Proefrock 18921
64 Sony: Children Should Power Their Own Toys Evan Vella 20439
65 Folding Bike Bag Charges iPods 24101
66 Aerorider: Three-Wheeled Enclosed Electric Bike 32578
67 Biker Gets Head Run Over...Is Just Fine Hank Green 19340
68 Electric Bikes: A Viable Alternative Hank Green 25579
69 Is it a Bike...or a Suitcase? Hank Green 15461
70 Muscle Power to Electric Power Hank Green 17743
71 Uhhhhhh....Strange Fast Bike Thing (with or without scary lady) Hank Green 19799
72 Weight to Watts Hank Green 21340
73 Ktrak SnowBike Hank Green 23121
74 The Best of the Best: Folding Bikes Hank Green 319051
75 Pull-String Power Hank Green 22824
76 Pedal Powered Laptop Hank Green 20949
77 Pedestrian-Generated Power Philip Proefrock 23027
78 DIY Human-Powered Tic Tac Light Hank Green 19274
79 Gerbil Wheel Elevator Hank Green 18077
80 Portable Squeeze Charger Hank Green 18859
 
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