Read the latest articles from Popular Science (Page 398)

Miniature greenhouse with semitransparent solar cell roof growing crop
Technology

Scientists think this tiny greenhouse could be a game changer for agrivoltaics

In new experiment, scientists used semitransparent, semi-organic solar cells.

Three honeybees fly near a crocus in a field.
Bees

Like the first flying humans, honeybees use linear landmarks to navigate

New research suggests that honeybees memorize linear landmarks like canals and streams to find their way home.

A pod of dolphins swimming together in blue water.
Ocean

The ‘High-Seas Treaty’ to protect marine life in the open ocean finally makes progress

Delegates from more than 100 countries have agreed to language for the new UN treaty.

Mexico's Monte Alban archaeological site, including stone step and structures with mountains in the distance.
Archaeology

What the longest-lasting Mesoamerican cities all had in common

Well-being of locals, as well as infrastructure, are key to a lasting society.

The Kronos prototype submarine.
Military

This small prototype submarine could fly through the water for covert missions

It looks like a GI Joe toy brought to life.

How to introduce a new cat to your pets
Cats

How to introduce a new cat to your pets

Follow these steps for a peaceful introduction to their new kitty companion.

A cedar DIY planter box on the concrete front steps of a gray house with a red door.
Projects

Liven up your yard by building this cedar planter box

You can make a planter out of almost any wood, but there's a reason cedar is preferred.

Poppy seeds can skew drug test results, but they won’t actually intoxicate you
Medicine

Poppy seeds can skew drug test results, but they won’t actually intoxicate you

Poppy seeds themselves don’t contain opiates. But during harvesting, the seeds can become contaminated.

Screenshot of AppCleaner on MacOS deleting apps.
Tech Hacks

This is how to completely delete apps and any residual data off your Mac

Dragging an icon to the trash is one thing. Deleting every trace of it, is something else.

Lichens may help forecast sea level rise
Ocean

Lichens may help forecast sea level rise

One of the great infrastructure challenges of the next few decades is to figure out which coastal sites should be abandoned and which can be saved. Lichens can help.

A drawing made by a five year-old child in Sweden with the description, “A boy coughed and put his hands over there (on the house) and someone came and touched it, then they got sick. X means that you shouldn't go outside and catch bacteria. The bacteria are underground. Blue faces mean you feel sick.”
Mental Health

Little kids drew their grim—and hopeful—reality of COVID

One child wrote ‘You throw up, then you cough, then you feel better or die,’ on their drawing.

Neuralink’s request for human trials of brain implants was reportedly rejected by the FDA
Technology

Neuralink’s request for human trials of brain implants was reportedly rejected by the FDA

Reuters reports that multiple safety concerns led to the FDA rejecting the application.

The skeleton of a possible Yamnaya horse rider.
Archaeology

People may have been riding horses as early as 5,000 years ago

Skeletal remains suggest the Yamnaya people of Eastern Europe sat astride horses.

best paint spray gun
Home

The best paint spray guns

Home renovations, car detailing, and deck priming have never been easier.

Person putting Chromebook into a bag.
Tech Hacks

You should back up your Chromebook. Here’s how.

Your Chromebook doesn't save everything automatically.

Meadow grasshopper sitting on blade of grass
Robots

Leaping robots take physics lessons from grasshoppers

Insects like grasshoppers could help build the next generation of jumping robots.

A lineup of storm generators on a background with lightning in the sky.
Home

Weather any storm with this portable generator deal on Amazon

Supercharge your emergency backup without overcharging your credit card with these powerful deals on Jackery, Champion Power, and Anker generators.

Why the US military plans to start making its own jet fuel
Air Force

Why the US military plans to start making its own jet fuel

Traditional jet fuel is a petroleum product that comes from the ground, but it can also be created synthetically. Here's how.

A man holes a phones and texts with a combination of words and emois.
Mental Health

People use emojis to soften the blow of negative feelings

Even while texting, we use 'display rules' to keep the peace.

To lower food emissions, consider what your dinner ate
Fossil Fuels

To lower food emissions, consider what your dinner ate

About 33 percent of croplands are dedicated to livestock feed production.