We rarely think about how liquids flow—why honey is thick, water is thin or how molten plastic moves through machines. But ...

Beyond your DIY air cooler, there are several other strategies to help beat the heat. Stay hydrated by drinking cold water throughout the day, and consider placing a damp, cool towel on your neck or ...

As temperatures soared on Monday, the MTA was hard at work trying to keep straphangers cool and the trains running on time.

Some hot days feel even worse thanks to high humidity, trapped heat and dew points. Cities are especially vulnerable.