Matter and Its Interactions
- Physics
Stephen Hawking says his group has solved a black hole puzzle
Physicist Stephen Hawking says light sliding along the outside of a black hole holds the key to understanding what’s inside.
- Materials Science
Long-sought subatomic particle ‘seen’ at last
Physicists have finally caught a brief glimpse of massless subatomic particles that were first predicted to exist 85 years ago. It’s the elusive Weyl fermion.
- Brain
To protect kids, get the lead out!
Lead poisons hundreds of thousands of children. In Chicago, experts show how the toxic metal hurts test performance in school.
- Materials Science
Keeping roofs cooler to cut energy costs
Cool it! A cheap paint-on coating for roofing shingles could help reduce a home’s heating bills and might even trim urban ozone levels, a teen shows.
- Brain
Scientists Say: MRI
MRI is a technique used to diagnose diseases and to study the body. The machine can map internal structures, all the way down to tiny blood vessels.
- Chemistry
Scientists Say: Ion
Some atoms and molecules have a positive or negative electrical charge. These are called ions.
- Chemistry
Cool Jobs: Saving precious objects
Museum conservators are experts at protecting and restoring precious objects. Along with art or history, many also have studied chemistry, physics, archaeology or other scientific fields.
- Chemistry
How sweat might make you smell sweeter
A new scent-delivery system ensures that the more you sweat, the more perfume it releases. In fact, it only works in contact with moisture.
- Tech
Cool Jobs: Big future for super small science
Scientists using nanotechnology grow super-small but very useful tubes with walls no more than a few carbon atoms thick. Find out why as we meet three scientists behind this huge new movement in nanoscience.
- Chemistry
Form some bonds with a chemistry card game
A new game can make aspects of learning chemistry fun. Pair charged elements together to create neutral compounds. Win points in the process.
- Physics
News Brief: As timely as it gets
A newly modified atomic clock won’t lose or gain a second for 15 billion years. This timepiece is about three times more precise than an earlier version.
- Physics
News Brief: Brrrrr — that’s really cold!
These atoms approached — and got oh so very close — to absolute zero.
