Predicting when and where the Northern Lights will be visible is a challenging game and can partially be predicted by referencing the "Kp" Index, which measures the strength of geomagnetic activity, ...

There's a lot of information on a tire's sidewall if you know where to look. Of course you have your make and model, but if you look closer you'll see an alphanumeric string on there — something like ...

The “hemline index” is one of those economic theories that never quite disappears. Popularized in the 20th century, it claims a correlation between skirt lengths and the stock market: shorter hemlines ...

Though many people recognize tire measurements, not everyone knows how to read the symbols on their sidewalls. Getting a grasp of how to read this is crucial to better understanding the tires you ...

The VIX index, often called the “fear gauge,” is a powerful tool for investors, whether you’re just starting out or have been managing your portfolio for years. Understanding the VIX can help you ...

Human Development Index (HDI) 2025 Ranking List: According to the most recent UNDP 2025 Human Development Report, trade tensions, growing debt crises, and unemployment in a variety of industries are ...

Wearing sunscreen all year round can help protect your skin from harmful UV rays. CREDIT: DieterMeyrl via Getty Images. Get the Popular Science daily newsletter💡 ...

We've all heard: "It's not the heat; it's the humidity." Well, it's not just a cliché; there is truth to it. According to the National Weather Service, the heat index is what the temperature feels ...

An excessive heat warning is in effect throughout most of Delaware through Wednesday, June 23. The heat index for most of Delaware will hit 100 degrees or higher for much of this week. The heat index ...