Year: 2010

30MPH electric mountain bike

MAKE subscriber Jennifer Holt of Columbus, OH, wrote in to share her rather overpowered electric mountain bike, running on a 48V motor powered by a homemade battery pack consisting of 144 3.3V lithium ion cells. Data from the battery monitor is logged to an SD card. This is the second of the two electric bicycles […]

Happy 4th! (One word says a lot)

Happy 4th! (One word says a lot)

Happy Independence Day to all of our American makers! In case you didn’t see this piece on Boing Boing, I thought I would post it here. I think it, and one of the first comments it received, speak volumes about this amazing experiment we call the United States of America. Hyperspectral images of a draft […]