Uncategorized
- Humans
Letters from the March 31, 2007, issue of Science News
On the hoof Do cows and other domestic-herd animals really emit more methane than bison and other wild-herd animals emitted before people came along? Do grass, alfalfa, and other pasture plants remove less carbon dioxide than do forests? There were open grasslands before pastures replaced some forests. I hope the people who are researching these […]
- Science & Society
From the March 20, 1937, issue
The real Groundhog Day, microfilm book storage, and turning farm waste into chemical products.
- Ecosystems
Lakeshore Nature Preserve
This nature preserve at the University of Wisconsin–Madison protects undeveloped lands along the shore of Lake Mendota. Even if you can’t visit it in person, the award-winning interactive map will help you appreciate the qualities of this beautiful slice of nature. Go to: http://www.lakeshorepreserve.wisc.edu
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Feeling Right from Wrong: Brain’s social emotions steer moral judgments
A new study of people who suffered damage to a brain area involved in social sentiments supports the notion that emotional, intuitive reactions typically guide decisions about moral dilemmas.
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Not So Wimpy: Antimalarial mosquito has an edge in tests
For the first time, mosquitoes engineered to resist malaria have shed their underbug image and outperformed regular mosquitoes in a lab test.
- Planetary Science
Solar-staring spacecraft shows its flare
A new image of the sun's chromosphere, a layer sandwiched between the sun's visible surface and its outer atmosphere, shows a surprisingly complex structure of filaments of roiling gas that promises to shed new light on why the sun erupts.
- Health & Medicine
Balancing Act: Excess steroids during pregnancy may pose risks for offspring
Heavy amounts of steroids taken during pregnancy can have long-term deleterious effects on offspring, a study of monkeys shows.
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19811
Was the increased death rate due to firefighters having a higher rate of heart disease than people do in other jobs? An analysis of eating habits may reveal more insight. Jim SchmitzSt. Louis, Mo. The study looked only at what the firefighters were doing at the time of death. It didn’t compare their heart-disease rates […]
- Health & Medicine
Risky Flames: Firefighter coronaries spike during blazes
A disproportionate number of heart disease deaths among firefighters occur during blazes.
- Physics
Closer to Vanishing: Bending light as a step toward invisibility cloaks
Invisibility cloaks may be a long shot, but new optical tricks could help in the design of future computers.
- Chemistry
Waistline Worry: Common chemicals might boost obesity
A family of chemicals implicated in testosterone declines may also be contributing to recent spikes in obesity and diabetes.
- Earth
Young and Restless: Ancient Earth shows moving crust
The oldest rocks in the world show that Earth's shifting crust began its tectonic movements almost 4 billion years ago.
