Uncategorized
- Science & Society
This robot won’t trip people up
New robots can follow the social rules of moving through a crowd, such as keeping to the right and passing on the left.
- Computing
Computers can translate languages, but first they have to learn
Translation programs are getting quite good at converting text from one language to another. Translating between three or more languages at once is trickier.
- Animals
Tiny T. rex arms were built for combat
The fearsome T. rex had more than a mouth full of killer teeth. Its relatively tiny arms also could have served in close combat as powerful slashers.
- Archaeology
Scientists detect mystery void in Great Pyramid of Giza
Using high-tech tools normally reserved for studies in particle physics, scientists have found a large, hidden void inside Egypt’s Great Pyramid of Giza.
- Physics
Ancient light may point to where the cosmos’ missing matter hides
The universe is missing some of its matter. Now astronomers may have a way to find it.
- Health & Medicine
Scientists Say: Vestigial
This adjective is used to describe something — like a body part or organ — that doesn’t have a function. Often it is smaller or less developed than the functional version in another species.
- Climate
Tropics may now emit more carbon dioxide than they absorb
Analyses of satellite images suggest that degraded forests now release more carbon than they store.
- Chemistry
Touching receipts can lead to lengthy pollutant exposures
The chemical BPA, which coats some cash-register receipts, may linger in the body for far longer than if someone had ingested it.
- Chemistry
Explainer: Store receipts and BPA
The chemical BPA may become trapped in the skin, causing it to linger in the body for a week or more after touching receipt paper.
- Health & Medicine
For teens, a good mood depends on good sleep
Teens need eight to 10 hours of sleep at night to feel good and function well the next day, a new data show.
- Climate
Thawing mosses tell a climate change tale
Plants long entombed beneath Canadian ice are now emerging. They’re telling a story of warming unprecedented in the history of human civilization.
- Health & Medicine
Student invents 3-in-1 hygiene powder
A teen who volunteers at a homeless center has developed a powdery product that can serve as dry shampoo, body powder and toothpaste.
