How Do Disposable Hand Warmers Work?

How Do Disposable Hand Warmers Work?

Our Top Reads

Virtual Influencers Are Unreal — Seriously, They Don't Physically Exist

Nov. 29 By Patrick J. Kiger

Why Is It Bad Luck to Break a Mirror?

Nov. 29 By Laurie L. Dove

Anne Bonny: A Real Female Pirate of the Caribbean

Nov. 28 By Mark Mancini

Kowloon Walled City Once Was the Most Densely Packed Place on Earth

Kowloon Walled City Once Was the Most Densely Packed Place on Earth
Rummikub Rules You Can Understand

Rummikub Rules You Can Understand
Wilma Mankiller, First Female Cherokee Nation Chief, Still Inspires Today

Wilma Mankiller, First Female Cherokee Nation Chief, Still Inspires Today
What Is a QWERTY Keyboard?

What Is a QWERTY Keyboard?

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Can You Solve This Riddle?

Can You Solve This Riddle?
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Play Our Crossword!
Can You Solve This Riddle?

Can You Solve This Riddle?

In the News

You Know the Kilo. Now Say Hello to the Quetta!

Nov. 23 By Alia Hoyt

Can Red Flag Laws Help Prevent Mass Killings?

Nov. 22 By Patrick J. Kiger

Marvel's 'Wakanda Forever' Pays Homage to Mesoamerican Cultures

Nov. 18 By Julian C. Chambliss

Leading Scientists Name 10 Essential Climate Issues for COP27

Nov. 14 By Meghie Rodrigues

The World Hits 8 Billion People; Is That Good or Bad?

Nov. 14 By Jasmine Fledderjohann, Melanie Channon

An Expert Explains Why Mastodon Won't Be the New Twitter

Nov. 11 By Brian C. Keegan

What Is a Flash Drought? An Earth Scientist Explains

What Is a Flash Drought? An Earth Scientist Explains
4 Quantum Physics Misconceptions, Busted

4 Quantum Physics Misconceptions, Busted

Did You Hear?

Mrs. Cheng: The Most Successful Pirate in History

Mrs. Cheng: The Most Successful Pirate in History
You Know White Noise, But What's Pink Noise and Brown Noise?

You Know White Noise, But What's Pink Noise and Brown Noise?
Why Is There a Gap at the Front of Public Toilet Seats?

Why Is There a Gap at the Front of Public Toilet Seats?
5 Tips for Solving The New York Times Crossword Puzzle

5 Tips for Solving The New York Times Crossword Puzzle
How to Safely Transport Your Christmas Tree Home

How to Safely Transport Your Christmas Tree Home

Science

5 of Earth's Highest Deserts

5 of Earth's Highest Deserts
Ocean Plastic Once Choking Chile's Shores Now in Patagonia's Hats

Ocean Plastic Once Choking Chile's Shores Now in Patagonia's Hats
What's the Difference Between Rational and Irrational Numbers?

What's the Difference Between Rational and Irrational Numbers?
15 Worst Hurricanes of All Time

15 Worst Hurricanes of All Time

Tech

Want to Shake Your Virtual Colleague's Hand? Holograms Could Help

Want to Shake Your Virtual Colleague's Hand? Holograms Could Help
How to End an Email

How to End an Email
What's the Difference Between Raw and JPEG Files?

What's the Difference Between Raw and JPEG Files?
What Is Section 230 and How Does It Protect Social Media Companies?

What Is Section 230 and How Does It Protect Social Media Companies?

Animals

Swordfish Are the Natural-born Gladiators of the Sea

Swordfish Are the Natural-born Gladiators of the Sea
The Fast and Furious Peregrine Falcon Is a Midair Hunting Machine

The Fast and Furious Peregrine Falcon Is a Midair Hunting Machine
Why Is Suet Used in Birdfeed?

Why Is Suet Used in Birdfeed?
5 Addictive Animal Cams You're Gonna Love

5 Addictive Animal Cams You're Gonna Love

Culture

How Love Works

How Love Works
How the Declaration of Independence Birthed the American Nation

How the Declaration of Independence Birthed the American Nation
A Look at the White House's Most Memorable Weddings

A Look at the White House's Most Memorable Weddings
Was the White House Really Trashed at Andrew Jackson's First Inauguration?

Was the White House Really Trashed at Andrew Jackson's First Inauguration?

Editor's Picks

Growing Mushrooms at Home Is Easier Than You Think

Growing Mushrooms at Home Is Easier Than You Think
Chief Mouser Larry the Cat Now Serves His Fifth British PM

Chief Mouser Larry the Cat Now Serves His Fifth British PM
What's the Difference Between Mold and Mildew?

What's the Difference Between Mold and Mildew?

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Native American History

Plains Indians Tell Their Stories Through Ledger Art

Plains Indians Tell Their Stories Through Ledger Art
Reign of Terror: The Forgotten Story of the Osage Tribe Murders

Reign of Terror: The Forgotten Story of the Osage Tribe Murders
How the Dawes Act Stole 90 Million Acres of Native American Land

How the Dawes Act Stole 90 Million Acres of Native American Land

It's About Time

Should the U.S. Move to Permanent Daylight Saving Time?

Should the U.S. Move to Permanent Daylight Saving Time?
NASA Is Sending an Atomic Clock Into Deep Space

NASA Is Sending an Atomic Clock Into Deep Space
How Rolex Came to Rule the Wrist

How Rolex Came to Rule the Wrist

Freeze Warning

Does One Dripping Faucet Really Prevent Frozen Pipes?

Does One Dripping Faucet Really Prevent Frozen Pipes?
Why Does My Tire Pressure Light Come on When It's Cold?

Why Does My Tire Pressure Light Come on When It's Cold?
Why Is Salt Used to Melt Ice on the Roads in Winter?

Why Is Salt Used to Melt Ice on the Roads in Winter?