Uncategorized
- Animals
Quieter vibes for city spiders
How much a web vibrates affects how well a spider senses when that web has captured prey. But webs attached to concrete, plastic and other artificial materials vibrate less than do those built on natural materials, such as twigs or leaves.
- Microbes
Return of the giant zombie virus
Scientists have discovered a new type of virus in Siberian soils. It's the largest virus ever discovered. And guess what: It could infect cells even after 30,000 years in cold storage.
- Space
Waves from the birth of time
Inflation is the idea that in the split-second after the Big Bang, the universe exploded into huge-ness. Although the hypothesis is 30 years old, evidence to confirm it had been lacking. Until now.
- Health & Medicine
Some of chocolate’s health benefits may trace to ‘bugs’
Dark chocolate offers people a number of health benefits. A new study finds that the breakdown of chocolate by microbes in the human gut be behind some benefits.
- Health & Medicine
The dangerous rise of electronic cigarettes
Electronic cigarettes were originally advertised as a way for smokers to wean themselves off of cigarettes. In fact, e-cigarettes are helping hook a whole new generation of young people on nicotine — an addiction that may transition back to tobacco.
- Health & Medicine
Explainer: What is a hookah?
Many teens are turning to water pipes as a potentially safer alternative to conventional cigarettes. But they’d be wrong.
- Health & Medicine
Explainer: What are e-cigarettes?
New battery-powered devices deliver nicotine, a dangerous and addictive drug.
- Physics
Laser tweezers grab nano bits
An optical fiber, a bit of gold and a laser make up a new type of tweezers. Scientists may soon use it to pick up and move around individual viruses or proteins.
- Health & Medicine
Low protein, longer life — for some
Eating less protein can lengthen life and improve health. That’s the message from new studies in mice and in people.
- Space
Galaxy drags trail of newborn stars
Distant galaxy plows through cluster of others, with baby stars in tow
- Environment
Burning to learn
Fires cause billions of dollars of destruction to homes and forests every year. But not all fires are bad, especially for forests. With a better understanding of fire, scientists can both help people prevent dangerous fires — and identify which ones it would be better to let burn.
- Environment
Explainer: How and why fires burn
A fire’s colorful flame results from a chemical reaction known as combustion.
