two7182's channel

On November 2nd, Oakland CA held a general strike that gathered more than 20,000 supporters - among them, teachers, students, families, and local l...

Whirlwind Wheelchair handcycle attachment descriptive video

Coupled Resonant Pendulum Swingset, designed and built for the Domkar Dho School in Ladakh, India by Aaron Wieler (for Design For Development and H...

Trial run of PA Nepal and Wrench Nepal's pedal and crank powered washing machine, designed and built in a 2-week class in August, 2008, in Sakhu an...

Bicycling Empowerment Network, Namibia: Bicycle Ambulance Project. (Manufacture and use)