Uncategorized
- Archaeology
Hunter-gatherers roamed Florida 14,500 years ago
Tools and bones from a submerged site in Florida show that Stone Age people lived in North America earlier than was once thought.
- Health & Medicine
Teen offers technology that could help brain surgeons
It can reproduce plastic models of the precise faulty vessels that need fixing. Now doctors can see them, hold them and practice on them long before they pick up a scalpel.
- Brain
Mapping word meanings in the brain
A detailed new map shows that people comprehend words by using regions across the brain, not just in one dedicated language center.
- Animals
Common plant could help fight Zika virus
A teen discovered that extracts from leaves of the San Francisco plant (Codiaeum variegatum) kill larvae of the mosquito that helps spread the Zika and dengue fever viruses.
- Earth
How ancient African fish feed today’s Amazon
Many of the world’s lushest tropical forests would starve if winds didn’t bring them nutrient-rich dust from across an ocean.
- Animals
Snot may be key to dolphins’ tracking of prey
Dolphins produce clicking noises that bounce off of prey, like sonar, showing where they are. Mucus in the animals’ nasal passages may make that ‘sonar’ work.
- Animals
Bed bugs have favorite colors
Bed bugs change their color preferences as they get older. Adults like red and black, which may help the dark bugs avoid predators.
- Tech
Where did that turbine blade get smacked?
A new technique can help engineers figure out where a bird or other object collided with a wind turbine or other whirling blade.
- Brain
Small region of brain recognizes facial expressions
Scientists identify the brain region responsible for recognizing facial expressions in others. It helps us know whether others are happy or sad.
- Health & Medicine
Control a computer with your tongue
Thousands of severely paralyzed people could venture into cyberspace with the use of this new tongue-controlled computer mouse. It was developed by a teen.
- Animals
Polar bears swim for days as sea ice retreats
Melting sea ice is forcing polar bears to swim long distances — up to nine days in one case. Such long treks may be more than the bears can handle.
- Physics
Scientists Say: Absolute zero
Even when we think it’s cold out, most molecules are moving. Only at absolute zero will all of their motions stop.
