The UV Index measures the ultraviolet radiation coming from the sun. There are three primary types of UV radiation: ...

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 ...

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 ...

The heat index is a measure of how hot it really feels on your body when relative humidity is factored in with the actual air temperature. Since heat index values were devised for shady, light wind ...

What Is an Index Fund? An index fund is a type of investment fund with a portfolio built to track or match financial market index components, such as the Standard & Poor's 500 Index (S&P 500).

A drug’s therapeutic index is a ratio that doctors use when prescribing medications and determining dosage. It shows how much of a drug a person’s blood can contain before it becomes toxic. The ...

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 “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 ...