Read the latest articles from Popular Science (Page 348)

Tesla coil experiment to demonstrate how electricity works.
Engineering

How does electricity work? Let’s demystify the life-changing physics.

How current is your knowledge?

An eating disorder chatbot that gave harmful advice was taken offline. Now it’s coming back.
AI

An eating disorder chatbot that gave harmful advice was taken offline. Now it’s coming back.

National Eating Disorders Association's chatbot Tessa misses red flags and congratulates people for starvation goals.

Toilet on palm tree-filled beach
Health

Why your poop gets weird on vacation—and what to do about it

No one wants to spend their entire getaway (romantic or not) on the toilet. 

A wooden DIY device charging stand holding three tablets and an iPhone, on a black shelf against a white wall.
Projects

Clean up your cable clutter with this DIY charging station

Cable chaos contained—woodworking for the win.

The hidden costs of Amazon returns
Internet

The hidden costs of Amazon returns

Together, costs and emissions create a sustainability problem for retailers and the planet.

cryostat infrastructure of a quantum computer
Engineering

Quantum computers are starting to become more useful

A new development could be promising for researchers in fields like material science, physics, and more.

Mac Studio M2 Max review front view
Computers

Apple Mac Studio 2023 (M2 Max) review: All the computing power a creative needs

The latest Mac for professionals cranks up the power level in just about every way.

Summer is off to an extreme start—here’s why
Climate Change

Summer is off to an extreme start—here’s why

Blame climate change, El Niño, and a dose of bad luck.

A mint-colored insulated LARQ smart water bottle on a small wooden table in front of a brick background
Fitness Gear

LARQ PureVis bottle review: Clean you can taste

Feel better about your drinking water with this portable self-cleaning water bottle that uses UV-C light to de-germify what comes out of the tap.

Wifi antenna on laptop used by person outside
Tech Hacks

Installing a WiFi antenna can boost internet speeds all around your home

Get faster and more reliable WiFi wherever your laptop goes.

Livestream screenshot of repairs to I-95 collapse.
Internet

Join thousands of people watching I-95 repairs in 24/7 livestream

Construction to reopen the collapsed section of I-95 in Philadephia are already underway. Here's where to watch it.

The M10 Booker combat vehicle.
Army

The Army’s new 42-ton assault vehicle has a compelling backstory

The M10 Booker is technically not a tank, but it sure looks like one. Here's how it got its name.

Where will electric semi-trucks recharge? California has a big solution.
Electric Vehicles

Where will electric semi-trucks recharge? California has a big solution.

The state estimates it needs to build 57,000 medium- and heavy-duty chargers by 2030.

This extremely metal Cretaceous dinosaur grew blade-like armor
Evolution

This extremely metal Cretaceous dinosaur grew blade-like armor

The Cretaceus creature’s closest kin hail from China.

A woman running on a desert trail to burn the most calories.
Fitness & Exercise

These heart-pumping exercises burn the most calories

Running, lifting, video gaming—we ranked them all based on the calories they burn.

The sustainable secret to raising tastier crabs
Fish

The sustainable secret to raising tastier crabs

Chinese mitten crabs fed the larvae of black soldier flies contain more of the molecules that make food delicious.

The best acoustic guitars
Audio

The best acoustic guitars

It don't mean a thang if it ain't got that twang. Here are top-of-the-line acoustic instruments for pros and beginners alike.

nasa x-66a sustainable flight demonstrator
Air Force

NASA’s ‘airliner of the future’ is now officially an X-plane

There are three active X-plane programs at NASA, including the new X-66A. Here's where each one stands.

Woman using laptop with pride flag behind her
Social Media

Twitter is the least safe social media site for LGBTQ people, GLAAD says

In its second annual Social Media Safety Index report, GLAAD offers a bleak assessment of social media protections for marginalized groups.

A glow-worm on a leaf.
Insects

Bright white lights are a buzzkill for glow-worm romance

Males take longer to find their mates thanks to increasingly light night skies.