Ian Mackay rode 184.4 miles in 24 hours using a mouth-controlled motorized wheelchair.A Washington man in a mouth-controlled motorized wheelchair set a new world record at Sauvie Island on June 22. Ian Mackay became paralyzed from the neck down after a bicycle crash in 2006. Starting on the summer solstice, June 21, Mackay broke the Guinness World Record for greatest distance traveled in 24 hours by mouth-controlled motorized wheelchair. Accompanied by friends on bikes and skateboards, cheered on by Sauvie Island residents and supporters, Mackay rode 184.4 miles in 24 hours. "Doing anything for 24 hours sounds miserable. And physically,...