Mental Floss

WEATHER





If you’re only measuring air temp, you’re only getting half the picture.

If you’ve ever said “it’s not the heat, it’s the humidity,” you already understand what goes into calculating wet bulb temperature.

Nick Keppler










The dog days of summer don’t actually have anything to do with this dog.

The dog days of summer don’t actually have much to do with dogs. Instead, they relate to Sirius, otherwise known as the Dog Star.

Sam Hindman


The northern lights—caused by solar or geomagnetic storm—float over Tromsø, Norway.

Solar storms are one of the most extreme types of space weather, and big ones can cause electronic malfunctions, GPS breakdowns, and gorgeous northern lights.

Julie Fogerson
Some of them had no choice.

From the Founding Father who stuck whalebone where he shouldn’t have to the only known woman to have given herself a C-section.

Jake Rossen, Erin McCarthy
The busy 2010 Atlantic hurricane season shows Hurricane Karl west of the Yucatan Peninsula, Hurricane Igor east of Puerto Rico, and Hurricane Julia in mid-Atlantic.

The hurricane season officially runs from June 1 through November 30 each year. Here’s what you need to know about these destructive storms.

Dennis Mersereau
A major thunderstorm is about to blow over this vineyard.

Meteorologists convey the chance of cloud cover or rain in percentages, but what those numbers mean in the real world isn’t always clear—so you’ll often hear terms like ‘scattered’ and ‘isolated’ to describe thunderstorms.

Dennis Mersereau








Now that spring is upon us, incorporate these seasonal words into your vocabulary.

The days are getting longer and warmer, and that means it’s the perfect time to pull these fun spring words out of hibernation.

Paul Anthony Jones