All Stories
- Chemistry
Scientists Say: Metal
Metals are substances that can be elements, alloys or compounds. They all conduct heat and electricity and can be formed into different shapes.
- Computing
New device gets power from 5G signals grabbed from the air
A new way to harvest electricity relies on a tiny array of antennas and a lens. Together, they collect and focus 5G signals coming from any direction.
- Physics
Why big nuts always rise to the top
X-rays scans of a box of mixed nuts now reveal why large Brazil nuts rise to the top.
- Animals
Rhinos, camels and bone-crushing dogs once roamed Nebraska
Scientists digging into the remnants of an ancient watering hole in Nebraska discovered evidence of an Africa-like savanna, complete with rhinos.
- Animals
These rabbits can’t hop. A gene defect makes them do handstands
Mutations in a gene that helps nerve cells work properly rob rabbits of their ability to hop. Instead, the animals use their front paws to move.
- Animals
Explainer: What are cicadas?
There are more than 3,000 species of cicadas, but the best known in North America are periodical cicadas, which emerge every 13 or 17 years.
- Animals
How bees play telephone to form a swarm
Honeybees use pheromones and flapping wings to tell each other where to find the queen — so they can all be together. Learn more with this web comic.
- Chemistry
Copper ‘foam’ could be used as filters for COVID-19 masks
The lightweight new material could serve as a washable and recyclable, eco-friendly alternative for many current mask filters.
- Psychology
Most people will add something — even when subtracting makes more sense
People default to adding when solving puzzles and problems, even when subtracting works better. That could underlie some modern-day excesses.
- Animals
Scientists Say: Genus
A genus is a group of closely related species. It’s the first part of the two-part system called binomial nomenclature, used to name living things.
- Climate
Urchin takeover underlies California’s vanishing kelp forests
Some 95 percent of kelp forests along its northern coast are gone. Meanwhile, sea otters are helping slow the loss of surviving kelp farther south.
- Health & Medicine
Simpler, easier COVID-19 test developed with kids in mind
Designed by moms, it avoids any need to stick an uncomfortable swab up the nose. Instead, people just swish a dental roll around their mouths.
