MF EXPLAINS IT ALL

Calling police officers “cops” dates to the 19th century.

Why Are Police Officers Called “Cops”?

Cutting down on syllables is just one reason ‘cop’ became synonymous with ‘police officer.’

Olives: You either love them or hate them.

Green Olives vs. Black Olives—They're Not as Different as You May Think

What sets green and black olives apart? It’s more than just color.

Malted milk powder makes all the difference.

Malt vs. Milkshake: What’s the Difference?

One key ingredient separates a malt from a milkshake.

What Are Those Weird Sleeves on California Gas Pumps?

They haven’t been mandated by the EPA since 2012, but California has kept them around.

The cocoon is on the left and the chrysalis is on the right.

Chrysalis vs. Cocoon vs. Pupa: What’s the Difference?

Confused about pupae, chrysalises, and cocoons? Discover the key differences between these metamorphic terms.

Both are major sources of fun, but they have their differences.

Amusement Park vs. Theme Park: What‘s the Difference?

Ever wondered if a theme park is just another name for an amusement park? Discover the real distinctions.

Is It Safe to Eat Raw Potatoes?

Snacking on a raw potato like it’s an apple is socially unacceptable. But is it a hazard to your health?

The Reason Why ‘Peggy’ Is Short for ‘Margaret’

Nickname origins can be tricky—but this one is actually pretty straightforward. (And it doesn't involve pegs.)

The woman above is technically a maiko, or young geisha in training.

Why You’re Not Allowed to Photograph Geisha in Japan

Japan’s geisha are experts in their field, but they’re often treated like tourist attractions. Learn why Kyoto officials have had to crack down on tourist photos.

The Simple Reason Why Gas Stations Put a Hold on Your Debit Card

That $150 or $175 hold was no mistake—but you won’t actually be on the hook for all of it.

Sardines vs. Anchovies: What‘s the Difference?

Anchovies or sardines? We break down how these small fish differ in looks, taste, and popular preparation methods.

Why Are Gas Stations So Close to One Another?

Spot a surplus of pumps in one small area? You're seeing Hotelling's Law in action.

Crunchy. Leafy. Exploding with flavor. (Just kidding.)

Why Is It Called “Iceberg” Lettuce?

Let’s explore the origins of America's most disrespected lettuce.

The Right Way to Pronounce ‘Worcestershire Sauce’

What it is, why it’s called that, and how to say it correctly.

Bright ideas come to us in the shower for a reason.

The Reason Why Our Best Ideas Come to Us in the Shower

The shower creates the perfect conditions for a creative flash, coaxing out your inner genius.

Resist the urge to smash this eight-legged fren.

The Reason You Shouldn’t Kill the Spiders in Your House, According to an Entomologist

Even if you don’t usually see them, spiders are in your house. And they’re paying rent, sort of.

Why Do Gas Stations Charge for Air?

Air is a free resource—unless you need it for your tires.

According to some people, North American and Italian Nutella are different products.

Is There a Difference Between Italian and American Nutella?

Explore the distinctions between the Nutella you know and the Italian original.

If you see a knight wearing a gauntlet, pray he keeps it on.

Why Do We Say “Throw Down the Gauntlet”?

A knight throwing down his glove in Medieval Europe meant serious business.

Why Is It Called a “Spud Wrench”?

The etymology of the ironworking tool comes with a slight twist.

Despite the name, it’s completely alcohol-free.

How Did Root Beer Get Its Name?

This classic American soda started as a brewed tea made from a potentially toxic plant.

The holiday is always a three-day weekend for a reason.

Why Is Memorial Day Always on a Monday?

Discover the real reason why Memorial Day always happens on a Monday, plus how the holiday actually does differ from Veterans Day, and more.

You may be better off sticking with your regular credit cards.

Why Do Retail Stores Push Their Own Credit Cards?

And is the discount they promise when signing up even worth it?

What Exactly Is Miracle Whip?

Miracle Whip may remind you of mayo, but it‘s not the same, according to the FDA.