Solar-powered hearing aids for the 3rd world
Retired Canadian business executive Howard Weinstein came up with a solution - a cheap hearing aid for the 3rd world, redesigned with some donated 1st world technology knowhow. It's powered by rechargeable, rather than throw-away batteries - at about the same $1 cost per battery, except they last 2-3 years, and can be recharged using a pocket-sized solar charger.
Oh, and he also found that the local deaf people make excellent employees to put these things together, because mastering sign language takes acute hand-eye coordination, needed to do the fine soldering and microelectronics.
Sometimes the small things in life make a big difference...
Something to Shout About - Africa needed hearing aids. Howard Weinstein got a chance to start over