Uncategorized
- Health & Medicine
Low birth weight matters later, too
Premature babies weighing less than 1.5 kilograms at birth grow up to have lower achievement scores on standard tests and are less likely to go to college than are full-term babies weighing more than twice as much.
- Math
A Snowy Twist
Carving a massive block of packed snow into an elegant sculpture presents all sorts of challenges. It’s even tougher when the goal is an intricate mathematical shape with a gravity-defying heart. A Twist in Time. Photo by Stan Wagon Eltanin by Bathsheba Grossman. On display at the northeast corner of 33rd and Walnut St., University […]
- Chemistry
A new molecule and a new signature
In two independent discoveries, chemists have prepared a new form of nitrogen and captured the infrared spectrum of an unusual molecule made up of hydrogen and oxygen.
- Materials Science
Scientists make nanothermometer
A carbon nanotube filled with gallium can be used to measure temperatures in microscopic environments.
- Astronomy
UV telescopes: One dead, one revived
One ultraviolet observatory burned up in Earth's atmosphere late last month while another has gotten a new lease on life.
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Women whiff men in sniff proficiency
Women of reproductive age exhibit a unique ability to learn to detect specific smells with great sensitivity, an aptitude that may reflect the activity of female hormones in the brain.
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19051
My olfactory sense was alerted while pregnant but stayed on guard. After 7 years, it’s sharper than ever. I can smell the minutest scents, which means my taste buds are equally sensitive. In some ways, it’s a blessing, but I end up smelling more than I want to: men too interested in me, a married […]
- Animals
Yellower blue tits make better dads
The yellow feathers on a male blue tit's breast could tell females that he'll be a good provider for the chicks.
- Plants
Tropical plants grow cool flowers
Tropical plants that position their flowers in the general direction of the sun are keeping the temperature comfortable for pollinators.
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18992
In this article there is a graph showing sharp peaks of ghrelin at mealtimes and a rapid drop-off after the meal is eaten. There is also a peak during the night, but there is no meal responsible for the drop-off. Does the research indicate what happens to the ghrelin level during the day when a […]
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- Anthropology
A Fair Share of the Pie
A cross-cultural project suggests that people everywhere divvy up food and make other economic deals based on social concepts of fairness, not individual self-interest.
