Uncategorized
- Earth
Ice ages boost production of new ocean crust
When sea levels drop during ice ages, magma at mid-ocean ridges surges.
- Materials Science
Oxygen sneaks into titanium, making it brittle
Oxygen atoms trigger defects in titanium’s atomic structure, making the metal brittle.
- Physics
Temperatures taken in the realm of the tiny
Aluminum and other materials can serve as their own thermometers at nanometer scales, opening up the possibility of taking the temperature of tiny computer transistors.
- Neuroscience
Shots of brain cells restore learning, memory in rats
Scientists healed damage caused to rats’ brains from radiation by injecting cells that replenish the insulation on neurons.
- Neuroscience
With good timing, experiences can rewire old brains
New experiences can rewire old brains — but the timing has to be just right.
- Health & Medicine
E-cigarettes lower immunity to flu and other germs
Electronic cigarettes produce substantial amounts of lung inflammation, a new mouse study finds. They may also reduce the ability to fight off infections from strep and flu germs.
- Paleontology
Monkeys reached Americas about 36 million years ago
Peruvian fossils suggest ancient African primates somehow crossed the Atlantic Ocean and gave rise to South American monkeys.
- Earth
Geologists discover tectonic plate’s slippery underbelly
Slippery layer of partially melted rock underneath tectonic plate revealed using reflected dynamite blast vibrations.
- Science & Society
Finalists chosen to compete in the 2015 Intel Science Talent Search
Teens from 18 states will soon face off in the finals of the 2015 Intel Science Talent Search, the nation’s most prestigious science research competition for high school seniors.
- Animals
Cockroach personalities can speed or slow group decisions
The mix of temperaments in an alarmed cluster of cockroaches changes how quickly they make group decisions.
- Humans
Baby brains undergo dramatic changes in utero
Developing human brains experience more than 28,000 changes in a molecular process that governs gene activity.
- Anthropology
Ancient Maya bookmakers get paged in Guatemala
New discoveries peg ritual specialists as force behind bark-paper tomes and wall murals.
