Uncategorized
- Health & Medicine
Food allergies can trigger stress and anxiety
From peanut-free lunch tables to unsympathetic relatives, food allergies can cause considerable stress for a kid. As they transition toward independence, parents and counselors can help.
- Health & Medicine
Explainer: What are allergies?
Sometimes the body’s immune system works too well, like a smoke alarm that blares every time you cook pizza. The results can range from uncomfortable to potentially life-threatening.
- Health & Medicine
Testing the power of touch
We pet dogs with our fingers, not our arms or backs. Our fingers are more sensitive to touch. But how do we know? Here's how you can test that.
- Psychology
Study links racism with signs of depression in Black teens
Among teens, just two weeks of frequent racial discrimination was enough to worsen signs of possible depression, a new study finds.
- Materials Science
New twist can hush — even cloak — some sounds
Swiss engineers developed clear, spiral structures to make a new sound-dampening system. Those twists block some vibrations and lets others through.
- Animals
Drones might one day capture a dolphin’s breath in midair
High-speed footage of dolphin spray reveals that droplets blast upward at speeds close to 100 kilometers per hour.
- Physics
Scientists Say: Decibel
A decibel is a unit of measurement that describes a sound’s volume. It’s used for sounds that are in the range of human hearing.
- Math
Color-changing fibers help unravel a knotty problem
Experiments with colorful fibers helped scientists discover a few simple rules on why the strength of various types of knots differs.
- Health & Medicine
Your most urgent questions about the new coronavirus
Researchers have more questions than answers right now about 2019-nCoV. They’re racing to understand and stop the coronavirus and the health crisis it poses.
- Chemistry
Help for a world drowning in microplastics
Microplastic pollution in our oceans and lakes is a problem. Scientists are testing solutions — from more biodegradable recipes to nanotechnology.
- Materials Science
Here’s how to hide some objects from heat-sensing cameras
A special coating that conceals temperature information from heat-detecting cameras might someday be used as a privacy shield.
- Health & Medicine
The many challenges of corralling a coronavirus outbreak
The Chinese government has quarantined millions of people in hopes of limiting spread of a new coronavirus. But no one yet knows how much this will help.
