Read the latest articles from Popular Science (Page 727)

bound by two sudoku puzzle
Science

These sudoku puzzles only use 1s and 0s. Can you crack them?

There’s only one correct answer for each grid.

A contrasting color or something bright, like a hi-vis piece of gear, can help other riders see you better, but always ride like other motorists don’t see you.
Motorcycles

Ride safely with these essential motorcycle tips

When your head’s in the right place, you’ll have a better time on your bike.

On January 4, 2011, the Hinode satellite captured these breathtaking images of an annular solar eclipse.
NASA

You may be able to spot a ‘ring of fire’ eclipse this weekend

The rare event happens once every one or two years.

Apple VR headset fake
Self Driving

Apple’s VR and AR headsets could still be years away

Catch up on all the technology gossip without all the hype.

These anaglyph images can be viewed with red-blue stereo glasses (or 3D glasses) to reveal the stars' distance from their backgrounds. On the left is Proxima Centauri and on the right is Wolf 359.
NASA

NASA’s New Horizons is so far away, it’s seeing stars from new angles

Things look a bit different from 4.3 billion miles away.

A gas pipeline under construction
COVID-19

Landowners say pipelines are being constructed in their backyards with little regard for COVID-19

Oil- and gas- pipeline firms have broad authority to build through private property. The coronavirus hasn’t slowed them down.

sand dunes in a desert with blue skies
Conservation

Half of the Earth is still free from human impact, but it’s not all good news

Many ecosystems are still at the brink.

public bathroom
COVID-19

You probably won’t get COVID-19 from flushing the toilet

Toilet plumes are yet another good reason to wash your hands.

A radio tower set against a night sky.
Exoplanets

The Milky Way could have dozens of alien civilizations capable of contacting us

A pair of researchers has forecasted 36 civilizations, to be exact.

hummingbird
Birds

Hummingbirds can see colors we can’t even imagine

The birds can distinguish hues in combinations of ultraviolet and visible light that puts our own technicolor vision to shame.

Person taking selfie
Tech Hacks

Take better selfies with these lighting and angle tips

Anyone can smile and press a button, but a good selfie is an art form.

Kampfmittelaufklärung und-identifizierung
Military

This 1.9-ton steel arm can spot bombs and lift soldiers out of harm’s way

The appendage is 33 feet long and a new part of the German Army’s IED identification system.

four hands with different skin colors next to each other on a table
Psychology

Anti-Black bias affects just about everyone. What’s the best way to deal with implicit racism?

We all suffer from unconscious biases.

Gen. Charles Q. Brown Jr.
Air Force

General Charles Q. Brown Jr. is a historic choice to lead the Air Force

The decorated pilot boasts 36 years of service, largely in the Pacific command.

a person checking their blood sugar
COVID-19

Doctors add diabetes to the list of COVID-triggered conditions

Infection with the novel coronavirus may set off stress-related diabetes.

Mario Lego
Technology

This new Lego set brings classic Super Mario games into the real world

several police officers standing in a road holding weapons
Psychology

Can implicit bias training help cops overcome racism?

Schooling police on how to push past prejudice won’t make disparities disappear, but some experts say it’s a necessary step.

iPhone with Spotify
Tech Hacks

Eight ways to cut down on your monthly subscriptions

Subscribe, unsubscribe, re-subscribe, repeat.

ancient ancestor of the modern crocodile, which walked on two feet.
Animals

Crocodiles’ ancient ancestors may have walked on two legs

Footprints in South Korea show a distinctive bipedal gait.

drugs generic
COVID-19

Scientists are working on at least 135 different coronavirus vaccines

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