These cooling helmets save construction workers from searing heat

Even better: They're solar powered

Qatar's solar-powered helmets.

"Construction can be hard, hot work at the best of times," said Zahraa Alkhalisi at CNN, but imagine building a soccer stadium in the Qatari ­desert, where "temperatures can soar to 122 degrees Fahrenheit in the summer." Construction is now well underway on eight new stadiums for the 2022 World Cup, which will be held in several cities across Qatar, and researchers have developed a self-cooling hard hat to help workers cope with the country's searing heat.

(Image credit: Courtesy image)

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