Articles on Heat

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Making a pitcher of iced tea can be a physics experiment. invizbk/iStock via Getty Images Plus

How do ice cubes cool a drink?

Energy transfer is the secret ingredient that makes iced tea a particularly refreshing drink on a hot day.
Fires burned across Spain in summer 2026. Acting quickly to shore up old stone walls when buildings burn can help preserve a region’s history. Jose Jordan/AFP via Getty Images

Wildfire‑damaged historic buildings may not be as ruined as they appear, but saving them means acting fast

The damage is sometimes only centimeters deep. Three engineers explain the colors of burned masonry and other signs preservationists look for amid another destructive fire year.
Fans can help circulate air, but on a hot day they do little for people working in a Mississippi farmer’s market. AP Photo/Rogelio V. Solis

Chronic pain is missing from America’s heat warnings

Chronic pain can make it hard to walk, carry groceries or sleep through the night. A new study finds that extreme temperatures are linked to that kind of pain.
Retrofitting old classrooms with air conditioners, even when necessary to maintain a cool classroom, isn’t always financially possible. RJ Sangosti/The Denver Post

It’s getting hotter in classrooms and on playgrounds – schools aren’t ready to handle extreme temperatures

A rising number of school districts across the country are beginning their new academic years in July or August, raising the likelihood that kids and educators will encounter scorching days.

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