Based on two articles in the new issue of Make by Erica Sadun, we will go over how to make a USB powered fan, and how to make a 9v battery powered usb charger. Then we’ll plug the USB fan into the USB charger and your head will explode. Along the way we’ll explore some basic laws of electricity and learn how to solder. All materials and a copy of the new issue of MAKE Magazine #7 included.
