Search Results for: Bears
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6,859 results for: Bears
- Materials Science
Making the Most of It
A recent crop of studies demonstrates how nature finds strength in unlikely places.
- Plants
World’s fastest plant explodes with pollen
A high-speed camera has revealed the explosive pollen launches of bunchberry dogwood flowers as the fastest plant motion known.
By Susan Milius - Astronomy
Three’s Company: Asteroid 87 Sylvia and her two moons
Astronomers have for the first time discovered an asteroid with two moons, an indication that the rock is highly porous.
By Ron Cowen - Anthropology
Reservoirs of Evolution: Rainy periods linked to human origins in Africa
Three phases of heavy rainfall in eastern Africa between 2.7 million and 900,000 years ago created deep lakes and might have played a critical role in the evolution of human ancestors.
By Bruce Bower - Chemistry
Making a Little Progress
Scientists are using nanotechnology to develop new strategies for diagnosing and treating cancer.
- Planetary Science
Mars or Bust!
Scientists are working to overcome the biomedical challenges that would hinder a human voyage to Mars.
By Katie Greene -
19523
Your article didn’t specify how strong the ultrasonic waves were or if any special conditions were required for these bubbles to form. I am curious to know if there’s a difference between the ultrasonic waves mentioned in your article and those in ultrasound exams of pregnant women. Andrea BikfalvyDowagiac, Mich. The article made me wonder […]
By Science News - Earth
Under Pressure: High-stress tests show surprising change in a mantle mineral’s behavior
Compressing a common iron-bearing mineral to the pressures found deep within Earth makes the material much stiffer, which might explain why seismic waves travel particularly fast through some zones of rock.
By Sid Perkins - Tech
Artificial Animalcules
Advances that include the first swimming micromachine and novel designs for similar devices are deepening scientists' understanding of the bizarre world of microscale liquids.
By Peter Weiss - Chemistry
Striking Oil: High-pressure processing minimizes trans fats
Improvements in the techniques used to hydrogenate vegetable oils could soon fill store shelves with food products containing smaller percentages of unhealthful trans fats.
By Ben Harder - Animals
Mom bears more sons when she gets extra bouquets
When researchers spiff up a male starling's courtship by delivering some extra bouquets to his mate on his behalf, the couple tends to produce more sons than usual.
By Susan Milius - Chemistry
Energy on Ice
Recent efforts to unlock a frozen source of natural gas deep under the permafrost and ocean floor have energized prospects for a methane-hydrate industry.