Chemistry
- 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.
- 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.
- Chemistry
Scientists Say: Toxin
It is safe to refer to any poison as toxic. But while all toxins are poisonous, most poisons are not toxins.
- Chemistry
Scientists Say: Cyanide
Cyanides are poisonous. But they are more than that. This group of compounds is used in everything from mining to capturing fish.
- Tech
Concrete science
Teen researchers are exploring ways to strengthen this building material, use it for safety purposes and use its discarded rubble.
- Chemistry
The newest elements finally have names
Nihonium? Tennessine? These aren’t body parts or medicines. They’re among the names just given to the four newest superheavy elements.
- Chemistry
Scientists Say: Acidification
When a solution becomes more acidic, it’s acidifying. And that’s not always a good thing.
- Fossils
Identifying ancient trees from their amber
A Swedish teen’s analyses of a sample of amber may have uncovered a previously unknown type of ancient tree.
- Materials Science
Nanowires could lead to super-long-lived battery
Scientists have long been looking for ways to make rechargeable batteries that last forever. They now may be close. Their solution: gel-dipped nanowires.
- Health & Medicine
Keeping samples cool without electricity
When vaccines and blood get too warm or cold, they can become useless. Two teens invented ways to keep their temperatures just right, no matter where they are.
- Chemistry
Key sugar for life on Earth could have formed in space
Ribose, a sugar in RNA, may have formed in space and then rained down on a young Earth, a new study suggests.
- Chemistry
Dwarf galaxy spawned heavy elements
A study of nine stars in the dwarf galaxy Reticulum II found heavy elements. They had been produced after a violent stellar event sparked a chemical chain reaction.
