
Sandcastle Engineering: A Geotechnical Engineer Explains How Water, Air and Sand Create Solid Structures
Building the ultimate sandcastle

Sandcastle Engineering: A Geotechnical Engineer Explains How Water, Air and Sand Create Solid Structures
Building the ultimate sandcastle

This Sticker Looks Inside the Body
A new stick-on ultrasound patch can record the activity of hearts, lungs and other organs for 48 hours at a time


Scientists Invent a Paper Battery—Just Add Water
A new disposable battery is made of paper and other sustainable materials and is activated with a few drops of water

There Are Too Few Women in Computer Science and Engineering
It’s not that they aren’t interested; it’s the culture of these fields and how they exclude women and girls

How to Make Sure Wildfire Shelters Save Firefighters’ Lives
Fiery tests can assess new prototypes of portable shelters, the last line of defense for wildland firefighters

Cilia Are Minuscule Wonders, and Scientists Are Finally Figuring Out How to Mimic Them
A new cilia-covered chip could revolutionize portable medical diagnosis

How Indigenous Groups Are Using 3-D Technology to Preserve Ancient Practices
To safeguard fragile cultural objects, some groups are replicating them with digital models

Spray-On, Rinse-Off Food ‘Wrapper’ Can Cut Plastic Packaging
The coating deters microorganisms to fight both food waste and foodborne illness

Tiny, Tumbling Origami Robots Could Help with Targeted Drug Delivery
The design’s origami pattern creates the flexibility needed to deliver compounds to specific areas of the body

Better Face Masks Are Possible: Here Are Some Winning Designs
A two-part competition aims to spark innovation and connect the groups trying to redesign high-quality masks that protect against COVID

Air-Conditioning Should Be a Human Right in the Climate Crisis
We need to protect vulnerable people from killer heat without destroying the environment

New Tech Conveys Emotional Touch Long-Distance
Complex social information can be felt through a virtual touch