To make aerated concrete, add a foam-forming agent and stir in a significant amount of air. This serves to make the concrete ...

In a college-entrance-exam landscape long dominated by the SAT and the ACT, a relative newcomer has started to gain traction—especially in red states. The Classic Learning Test, first unveiled a ...

We are finally feeling like summer here in Vermont and Northern New York. Over the past couple of days, you may have noticed our NBC5 First Warning Weather Team mention the term “dew point” or ...

In the summer months, a humidifier can help to add moisture to the air and keep the temperature cooler — we share our expert knowledge to give you more purchasing power. When you purchase through ...

NORFOLK, Va. — Most summer days, you hear us talk about “humidity” when describing how the air feels. While many people are familiar with the term relative humidity — the percentage of water vapor in ...

Hot, sticky and unrelenting: That has been the experience for much of the country this summer, including more than a dozen states that had record high humidity in July. Last month was muggier than ...

The new Arc'teryx Beta AR jacket with a fresh take on waterproofing with the introduction of the Gore-Tex Pro ePE membrane. Arc’teryx has partnered with Gore-Tex since 1995. Now, 30 years in, the ...

Heat and humidity will once again smother the eastern half of the country this week, pushing the heat index to dangerous levels for tens of millions of people. In the Midwest, the humidity will be ...

Before you step outside, you may want to know how humid, or "sticky" it feels. That comes down to knowing the dew point. Dew point is more commonly discussed in the summertime and is a good measure of ...

The first major heat wave of summer has enveloped much of the midwestern and eastern U.S. in a brutal “dome” of record temperatures and high humidity. The dome phenomenon happens when weather ...

Some hot days feel even worse thanks to high humidity, trapped heat and dew points. Cities are especially vulnerable. By Nazaneen Ghaffar Nazaneen Ghaffar is a reporter on The Times’s weather team. It ...