How did the wind powered generators work that were made for African primitives using a vibrating vertical strip.?
There was a great TV bit on the amazing benefits to some grasS hut dwelling natives of having a one watt battery powered light in the evening. Reduced the birth rate by a third! The generator was powered by a vertical strip of something flexible held at each end beside the hut. The wind caused the strip to rapidly rotate back and forth at its center. A magnet(s?) place at its midpoint fluttered rapidly back and forth in front of a coil to generate current to be stored in a small wet cell. The wet cell was carried into the hut at night, attached to a one watt LED and voila! It change their lives. They could READ in their spare time. WHO HAS ANY IDEA OF HOW I COULD MAKE SUCH A GENERATOR??