Read the latest articles from Popular Science (Page 620)

Discovery Of Fairy Circles In Australia Helps Scientists Pinpoint Their Mysterious Origins
Environment

Discovery Of Fairy Circles In Australia Helps Scientists Pinpoint Their Mysterious Origins

It's not from fairies (probably)

Captive Research Chimp Population Gets A New Home In Georgia
Animals

Captive Research Chimp Population Gets A New Home In Georgia

A Chimpanzee retirement community

Portable multimeter Cen-tech P34907
DIY

Tool Smackdown: Pocket Multimeters

Our favorite devices for measuring volts, ohms, amps, and Hz in the real world

‘The X-Files’ Top Five Alien Episodes
Science

‘The X-Files’ Top Five Alien Episodes

Even after nine seasons, we never got tired of believing

A black Mercedes-Benz in a parking lot.
Vehicles

How I converted my Mercedes-Benz to run on veggie oil

Lessons learned from converting a 1984 Mercedes into a grease-mobile.

Japanese great tit
Birds

These Songbirds Can Speak To Each Other Like Humans Do

Other animals like whales and dolphins may have the ability, too

warming art
Evolution

Your Nose Is Bad At Warming Air

But there are good reasons why humans have longer nasal passages than their relatives

An electronic Post-It note
Projects

Build it: the electronic Post-It note

Who needs pen and paper? Jot down reminders on a digital screen, using only your finger.

a sulfur-crested cockatoo perched on a wall
Birds

Australian cockatoos are teaching each other to open trash cans

Sulfur-crested cockatoos living in the Sydney suburbs are going through a kind of cultural renaissance.

soldiers near a vehicle with drones in the background
Drones

Drones could help save soldiers’ lives by delivering blood on demand

British commandos tested out a drone swarm as a blood-delivery system in a recent exercise.

Track runner kneeling on starting line
Physics

Are all track lanes created equal when it comes to winning gold?

Data from past Olympics show that lane advantages aren't definite.

Northern cardinal bird with right side male red and left female tan in a bare tree
Birds

4 unexpected facts about the Northern cardinal, a bird you should know better

It sounds like a lightsaber and comes in rare colors. Top that.

Several glass vials of the COVID-19 vaccine sit on a table top.
Vaccines

Despite surging Delta variant, a national vaccine mandate is unlikely

Here’s what you need to know about the pandemic this week.

how to identify ticks
Wildlife

A guide to the tick species every American should know

Learn to ID the bloodsuckers and understand the diseases they might carry.

Person inserting cassette in cassette player.
Tech Hacks

A modern guide to cassette tape players

As written by a millennial who’s gone from tapes to streaming apps, and everything in between.

desktop computer best prime day deals
Gear

Best Prime Day deals: Amazon deals today

Explore the best Prime Day deals to score on tech, home goods, and more.

a robotic military vehicle in the snow
Military

Meet Robbox, the robot that schleps a half-ton of supplies for special forces

The machine is one possible way for commandos, burdened down by gear, to get a helping hand.

Silence Before the Storm
Environment

Silence Before the Storm

Lack of international coordination threatens high-tech early-warning systems for tsunamis

A pack of wolf puppies.
Dogs

Puppies beat out young wolves in one important skill

There are some tricks you just can’t teach a baby wolf.

The menu for web browser options, with "mute site" selected.
Tech Hacks

How to block pop-ups and annoying auto-play videos

Restore the peace and quiet in any web browser.