![Tommie Nellon shows off his invention, a hat that uses solar panels mounted to the brim to activate a fan that keeps the head cool, on Monday, January 7, 2008, in Fresno, Tommie Nellon shows off his invention, a hat that uses solar panels mounted to the brim to activate a fan that keeps the head cool, on Monday, January 7, 2008, in Fresno,](https://c8.alamy.com/comp/2F14G1D/tommie-nellon-shows-off-his-invention-a-hat-that-uses-solar-panels-mounted-to-the-brim-to-activate-a-fan-that-keeps-the-head-cool-on-monday-january-7-2008-in-fresno-california-photo-by-craig-kohlrussfresno-beemctsipa-usa-2F14G1D.jpg)
Tommie Nellon shows off his invention, a hat that uses solar panels mounted to the brim to activate a fan that keeps the head cool, on Monday, January 7, 2008, in Fresno,
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![Tommie Nellon shows off his invention, a hat that uses solar panels mounted to the brim to activate a fan that keeps the head cool, on Monday, January 7, 2008, in Fresno, Tommie Nellon shows off his invention, a hat that uses solar panels mounted to the brim to activate a fan that keeps the head cool, on Monday, January 7, 2008, in Fresno,](https://c8.alamy.com/comp/2F14G00/tommie-nellon-shows-off-his-invention-a-hat-that-uses-solar-panels-mounted-to-the-brim-to-activate-a-fan-that-keeps-the-head-cool-on-monday-january-7-2008-in-fresno-california-photo-by-craig-kohlrussfresno-beemctsipa-usa-2F14G00.jpg)