How to Sharpen a Pocket Knife in the Field or at Home
There are plenty of pocket knife enthusiasts in the world, but not nearly as many knife sharpening enthusiasts. This means ...
Why Coolant Maintenance Is Just as Important as Changing Your Oil
Coolant needs changing because chemicals in the coolant break down and become less effective over time. This use ends up ...
A Room-Temperature Superconductor Is a Scientific Holy Grail—and We're Now Closer Than Ever
In a new paper, scientists uncovered a new state called Cooper-pair density modulation that could teach us a lot about ...
Scientists Spotted Evidence of an Unseen Universe—Even Though That Should Be Impossible
For now, researchers think the light might be coming from the first stars to exist, or outflows from a supermassive black ...
Metal Detectorists Were Scanning the Beach—and Found a Stunning 2,800-Year-Old Dagger
When a heavy storm ripped into a Baltic Sea cliffside on the coast of Poland, it sent chunks of the cliff crumbling to the ...
An Unstoppable New Alloy Can Survive 1,400°F—and Could Transform the Planes You Fly On
A new study designed a copper-tantalum-based superalloy (with added lithium) that can operate up to 800 degrees Celsius (1472 ...
Editor’s Picks: What the PopMech Editors Loved This Month
From household spring cleaning products to cast iron pans, our editors tested dozens of products, but only a few made the cut.