Read the latest articles from Popular Science (Page 831)

Salami cut on cutting board with knife.

How to hand-cut salami like a pro

If you can’t get your hand on a meat slicer, these expert tips are the next best thing.

By Megan Falk/Saveur

underwear and tampons on a pink background

Period underwear may contain troubling chemicals—but the real problem is much bigger

Menstrual products are under-regulated around the world

By Kate Baggaley

Person taking photo on high rock

Keep your photos from getting stolen on the internet

Enforcing copyright is not easy, but it might be worth it.

By Harry Guinness

probiotic bottle being tipped into someone's hand

Google results for probiotics are totally unreliable

Initial search results for probiotics may not tell the full story.

A stack of cut-out knife blanks waiting to be finished.

A deep dive into how knife blades are made

It’s worth knowing what you’re buying when it comes to sharpened steel.

By Matt Foster/Field & Stream

a woman in a sun hat sitting in a chair by a pool at a tropical resort hotel

Hotel star ratings are useless. Here’s how to read reviews the right way.

Two stars to someone else might be four stars for you.

By Danielle Sepulveres

Researchers trace galactic history in ancient grains of alien sand

They’re the oldest things you could possibly touch.

By Charlie Wood

How long will you have to wait before these CES technologies become real?

By Stan Horaczek

Amish couple riding on a horse-drawn wagon

A mysterious cluster of deaths amongst Amish children has finally been solved

After 15 years of tragedy, these families have some answers.

By Sara Chodosh

Windows keyboard

What to do when your OS becomes obsolete—and how to save money in the process

All software goes to heaven.

A screenshot from "the goop lab with Gwyneth Paltrow"

Scientific backlash only makes Goop stronger

Gwyneth Paltrow’s forthcoming show suggests that facts and studies don’t always bring an end to harmful wellness trends.

By Michael Schulson/Undark

a hand holding a thermometer

Our average body temperatures seem to be dropping

Talk about historical hotties.

Hand in leather bag with Chromebook laptop

The best Android apps for your Chromebook

Our top picks for music, TV, art, and games.

A food scientist breaks down the thermodynamics between marshmallows and hot chocolate

The most important question: Do marshmallows cool down or heat up the drink?

The Sims language

The Sims’ language has surprisingly scientific origins

Robi Kauker helped improvise a nonsense vocabulary for the popular game. The process was ‘stupid hard.’

By Marion Renault

We know wildfire smoke affects our health, but the long-term consequences are hazy

The dose of exposure is important—the worse the pollution, the greater the health effects.

By Brian Oliver/The Conversation

African grey parrot.

For some African grey parrots, sharing is caring

Birds were willing to sacrifice so their pals could get a snack.

By Sara Kiley Watson

a drawer made out of scrap wood

How to build a drawer out of scrap wood

A drawer doesn’t have to be fancy to be functional.

By John Kennedy

ferret captures a prairie dog

The race to save the most elusive ferret in the U.S.

Despite some conservation success, the species remains threatened out West. Biologists are trying to understand why.

By Elizabeth Miller/Undark

satellite image of smoke over amazon rainforest

The Amazon stores tons of carbon. Climate change-fueled wildfires could ruin that.

Deforestation makes drought-stressed forests even more vulnerable.

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