Engineering Design
- Health & Medicine
To remember something new: Exercise!
People who exercised strenuously for a half hour after learning something new cemented those memories. But the trick: Wait four hours before getting the heart pumping vigorously.
- Chemistry
E-cigs create toxic vapors from harmless e-liquids
New study finds a primary source of toxic vaping compounds. It’s the heat-driven breakdown of the liquids that hold nicotine and flavorings. And older, dirtier e-cigs make higher amounts of the toxic chemicals.
- Tech
Moral dilemma could limit appeal of driverless cars
Driverless cars will have to be programmed to decide who to save in emergencies — passengers or pedestrians. Many people aren’t yet sure they are ready to choose cars that make the most moral decision.
- Chemistry
Gasp! At the movies, your breaths reveal your emotions
Researchers took air samples as they screened movies. What people exhaled were linked to film scenes’ emotional tone, they found.
- Health & Medicine
Zika vaccines look promising
As a Zika epidemic surges through Brazil and northward, scientists are looking for drugs to keep more people from becoming infected. Several vaccines show promise in early tests — but none has yet been tried in people.
-
Teen makes sure bacteria stay hands-off
Germs are everywhere. One teen has designed a way to keep them from sticking to a surgeon’s gloves.
- Tech
Clear, stretchy sensor could lead to wearable electronics
Researchers have combined plastics and metal to make a transparent, stretchable sensor. It could soon find use in touchscreens, wearable electronics and more.
- Earth
Earth’s tectonic plates won’t slide forever
Earth’s surface morphs, owing to the movement of its tectonic plates. But those plates didn’t use to move so quickly. And in a few billion years they’ll grind to a halt, new research suggests.
- Climate
Volcanic rocks can quickly turn pollution into stone
A test program in Iceland injected carbon dioxide into lava rocks. More than 95 percent of the gas turned to stone within two years.
-
Ink leads way to terminating termites
Inspired by a classroom experiment, a teen has built a way to lure troublesome termites to their death — using the power of ink.
- Animals
Catching ‘Dory’ fish can poison entire coral reef ecosystems
More than half of saltwater-aquarium fish sold in the United States may have been caught in the wild using cyanide, new data show.
- Health & Medicine
Adult diseases may be linked to childhood weight
Danish scientists find that very overweight kids grow up with a heightened risk of colon cancer and stroke.
