HAVE SOME SCRAP WOOD? MAKE THIS DIY SHAKER STEP STOOL

We built this little stool using just a few common tools and some scrap wood. For accurate crosscuts, we recommend using a miter saw. For the notch, a table saw is the better choice.

Treasure Hunters May Have Found JESSE JAMES'S LOST GOLD

The legendary treasure could be worth tens of millions-if the team can dig it out of the ground.

Nixing the Chaotic Leap Second

Can't Stop Thinking About

The Fast Approach to Cleaning Your Car

KEEPING YOUR CAR'S EXTERIOR SPICK-AND-span not only makes your ride look good but, in some cases, can even make it more efficient.

What Should the World Know More About?

Pry open any PopMech editor’s brain and you'll find an overstuffed assortment of fun facts, practical tips, interesting bits of history, and other insightful discoveries. But because there are only so many pages in this magazine, staffers don’t always have the space to share their favorite, most underreported nuggets of knowledge. Until now.

Bottled Water B.S.

Tossing hundreds or thousands of empty water bottles into your recycling bin each year doesn’t make up for the fact that you're using up that amount of plastic for a free, renewable resource in the first place.

Back-Breaking Work Requires Some Help

Everyone feels the hurt as you age, but CBD can help you deal with it

Whether Earth Once Harbored a Pre-Human Industrial Civilization

Complex life on our planet has existed for at least 400 million years.

The Unrelenting Roar of a Crypto Mine Tore This Town Apart

Cryptocurrency aims to revolutionize finance, but its mines are destroying communities across America.

Why Isn't the World Made of Lego Blocks?

Lego bricks are among the most durable building materials in existence. So why don't we make everything out of them?

Jupiter's Shifting Orbit Will Make Earth Paradise (or Hell)

Oh, Jupiter. If only the gas giant shifted its orbit slightly, becoming more eccentric (meaning ovalshaped), it could transform the shape of Earth's orbit, too, causing parts of the blue planet to move closer to the sun.

22 Greatest Tools in the History of the World

Tools make us human, but we are not the only ones who use tools. Some birds drop rocks to crack shells open, and certain apes use sticks to get food or groom themselves.

Disston D-8 Saw

MADE: 2022 ACQUIRED: 2022 FUNCTION: Crosscutting and ripping lumber

Valve's Steam Deck Makes PC Gaming Truly Portable

MOBILE GAME SYSTEMS HAVE LONG BEEN VIEWED AS inferior to gaming computers and consoles. That's because their smaller components are often too weak to keep up with the rising graphics demands of new titles.

Track Saws Help You Cut Straight, Like a Pro

NOT ALL THAT LONG AGO, TRACK SAWS WERE N made by only a handful of companies and were employed almost exclusively by professional tradesmen.

Solving This Maddening Probability Problem

Can't Stop Thinking about

The World's First Hypersonic Cruise Missile

A NEW MISSILE SET TO ENTER SERVICE in 2027 is radically different from anything else in the Pentagon's arsenal.

How 3 Quantum Physicists Proved Einstein Wrong

0NCE DESCRIBED AS \"SPOOKY ACTION at a distance\" by the world's most famous physicist, Albert Einstein, entanglement the idea that two particles separated by vast distances could instantly influence each other-lies at the very heart of what makes quantum physics so strange and counterintuitive.

Crabs Revolutionizing the Battery Industry

EVERY YEAR, WE PRODUCE ABOUT 6 TO 8 million tons of crab, shrimp, and lobster shell waste globally, with most of it dumped straight back into the ocean or into landfills.

A Handsome Industrial Coffee Table for Less Than $200

YOU'VE SEEN THE ADS AND CATALOGS HAWKING TRENDY FURniture featuring pseudo-repurposed materials for gobs of money.

PATHS HIDDEN IN PLAIN VIEW

If you've ever seen a makeshift dirt path connecting two sidewalks, that's a \"desire path,\" also known as a desire line or game trail.

Whether Objective Reality Even Exists

Scientists from the Federal University of ABC (UFABC) in the São Paulo metropolitan area in Brazil believe that reality might be \"in the eye of the observer.\"

What Happens When a Black Hole Dies

This issue only compounded in the mid-1970s when Hawking took the principles of quantum physics and applied them to the edge of black holes.

The Air Force's Bat-Winged Tanker Transport

The result is a plane that, at least in concept art, often looks like a cross between a wide-bodied passenger jet and the B-2A Spirit stealth bomber.

How to Drift in a Production Car

Contrary to other forms of motorsport, drifting doesn't require all that much equipment, or even space, to get started.

How the World's Largest Freshwater Fish Grew So Huge

But how did the new record-holder become so enormous in the first place?

ULTRA-HOT NUCLEAR FUSION REACTORS

Korea's Fusion Reactor had Ran 7 Times Hotter

JAPAN'S BIG BOY DEEP-SEA TURBINE HARNESSING OCEAN CURRENTS

The 330-ton subsea generator will be up-and-running sometime in the 2030s.

Building the Perfect Campfire With Math and Science

To build a good bonfire, you should stack your wood structure just as high as it is wide, like a pyramid.

Save Time-and Your Back-With an Ergonomic Snow Shovel

Our testing has shown us there is a lot more to choosing the right snow shovel than you think.