TOP 100 CAMPING SITES
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| Readers Respond on "Naked Singularities" End without Horizons?In “Naked Singularities,” Pankaj S. Joshi argues that models for stellar collapse can produce naked singularities, or singularities without the event horizon that surrounds a black hole. According to quantum theory, black holes emit thermal radiation and evaporate because of the separation of particle-antiparticle pairs near their event horizon. Will a naked singularity ever disappear? [More] rss.sciam.com |
What's on TV Is Biomedical Bonus [The following is an exact transcript of this podcast.]When TV sets die, they usually end up incinerated or in landfills. But now researchers from England’s University of York believe they’ve found a valuable use for told TVs--in medicine. [More] rss.sciam.com |
How Sunlight Controls Climate Small changes in the sun's brightness can have big impacts on our planet's weather and climate. And now scientists have detailed how that process might work, according to a new study published August 28 in Science . [More] rss.sciam.com |
Sicilian Curse: People Living Near Volcanic Mount Etna Could Face Increased Risk of Thyroid Cancer At nearly 11,000 feet, Mount Etna in eastern Sicily is one of the world's most active volcanoes. And while the peak erupts at a slow enough rate for people to escape a lava burial, the gentle giant could put people at an increased risk of a different hazard--the development of thyroid cancer. [More] rss.sciam.com |
Scientists link flame retardants and reduced human fertility Women exposed to high levels of flame retardants take substantially longer to get pregnant, indicating for the first time that the widespread chemicals may affect human fertility, according to a study published Tuesday. [More] rss.sciam.com |