Professor with muscular dystrophy with engineering student and professor discussing log book for water distillation system in a laboratory

protection teamwork industry science technology female women education man engineering safety medicine teaching learning machine asian student usa hunt engineer chemistry experiment lab laboratory discussion mark teacher research wheelchair examining explaining studying photography university females notebook whites professor males disability massachusetts diabetes new england side view looking away north america science and technology lab coat full length analyzing senior adult mid adult women middle aged adults mid adult indoors vertical people holding men woman male four people color image chinese ethnicity mid adult men young adult senior men university student protective eyewear adults only group of people healthcare and medicine 30 35 years 25 30 years 65 70 years 55 60 years looking at each other laboratory equipment scientific experiment distillation protective workwear middle aged men physical impairment protective glove person in education water purification liquid nitrogen muscular dystrophy logbook front view half length needham engineering professor stem education engineering school chemical analysis chemical analysis laboratory water distillation system water distillation