Read the latest articles from Popular Science (Page 133)

Used cigarettes in ashtray
Sustainability

Recycled cigarette butts can make roads more durable

Researchers used the trash to create new, stronger asphalt.

two robot arms playing table tennis
AI

Google set up two robotic arms for a game of infinite table tennis

The match could help train the advanced AI models that power humanoids.

A herd of ceratopsians (Styracosaurus albertensis) accompanied by an ankylosaur (Euplocephalus tutus) walk through an old river channel under the watchful eyes of two tyrannosaurs (Gorgosaurus libratus). Artwork by Julius Csotonyi.
Evolution

Dinosaurs roamed in multi-species herds, fossilized footprints show

Nearby Tyrannosaur tracks may explain why.

Older, wrinkled hand reaching out to child's hand
Health

Skin wrinkles because it stretches like Silly Putty

Researchers say they found the ‘Holy Grail’ of skin mechanics.

Friends having fun while playing with ball in the swimming pool. Aerial view.
Health

How germy is the public pool?

An infectious disease expert weighs in on poop, pee and perspiration – and the deceptive smell of chlorine.

toothbrush and big tooth
Health

Don’t put charcoal on your teeth and 4 other dental no-nos

Skip the rinse after brushing too.

Lightning striking tree at night
Climate Change

Lightning kills 320 million trees each year

That has a major impact on carbon dioxide emissions.

Four of the best coolers with wheels sliced together against a white background.
Home

The best coolers with wheels, tested and reviewed

Keep your food and beverages from getting warm and your back from getting sore with these impressive wheeled coolers.

CCTV video screenshot of home's driveway during earthquake in Myanmar
Environment

In world first, CCTV captures supershear velocity earthquake

The rupture in Myanmar occurred at up to 3.7 miles per second.

Anker Soundcore speakers on a sky background
Speakers

This waterproof Anker speaker gets 24 hours of playback per charge and it’s just $30.22 at Amazon

Grab two of these $30 speakers to make a powerful stereo pair and rock the pool or patio until the neighbors get upset.

Hand writing 2+2=4 on chalkboard
AI

Human teens beat AI at an international math competition

Google and OpenAI earned gold medals, but were still out-mathed by students.

Suncloud sunglasses on a yellow background on sale at REI
Outdoor Gear

REI has Suncloud polarized Suncloud sunglasses as low as $33.73, including a lifetime warranty

Ditch your cheap gas station sunglasses and get a pair that will improve clarity while protecting your eyes from 100 percent of UV rays.

Globe in motion against green background, map of Asia and Australia
Science

This summer is filled with scientifically short days

Our planet’s rotation has been speeding up for years.

a whale's tail as it goes into the water
Whales

Decoding the fingerprint of a humpback whale

From scars to barnacle blooms, a whale’s tail is a living record of its life. 

Photo of galaxy with zoom in box showing Betelgeuse and companion star
Space Telescope

Betelgeuse’s companion star finally located after years of debate

Astronomers suspected it existed, but didn’t think they’d ever see it.

Office interior with white columns and panoramic windows in modern loft. Many green plants in pots in workroom with laptops on tables with chairs and cups at daylight, flat lay, nobody, free space
Science

Four-day work week benefits workers and employers, new study shows

‘Perhaps the most surprising finding so far is that there is no surprise.’

Mechanical computer device built from Knex parts
Engineering

Inventor builds mechanical computer with thousands of Knex pieces

'‘It looks like a mess but I promise it’s just organized chaos.'

old wooden floor of boards nailed down
Projects

The secret stories of trees are written in the knots and swirls of your floorboards

An expert explains how to read them.

several fireflies blinking at once in a forest
Land

Why fireflies are everywhere this summer

The bioluminescent bugs of summer still need our help to stave off extinction.

screenshot of icloud
Tech Hacks

6 extra perks included with Apple iCloud storage

There's a lot more to iCloud besides storage.