| Satellites Used to Predict Infectious Disease Outbreaks Rather than searching for weird weather or enemy missiles, some satellites are helping researchers to track--and predict--the spread of deadly diseases. [More] rss.sciam.com |
The Long-Lost Siblings of the Sun (preview) People have often sought solitude in the starry night sky, and it is an appropriate place for that. The night is dark because, in cosmic terms, our sun and its family of planets are very lonely. Neighboring stars are so far away that they look like mere specks of light, and more distant stars blur together into a feeble glow. Our fastest space probes will take tens of thousands of years to cross the distance to the nearest star. Space isolates us like an ocean around a tiny island.Yet not all stars are so secluded. About one in 10 belongs to a cluster, a swarm of hundreds to tens of thousands of stars with a diameter of a few light-years. In fact, most stars are born in such groups, which generally disperse over billions of years, their stars blending in with the rest of the galaxy. What about our sun? Might it, too, have come into existence in a star cluster? If so, our location in the galaxy was not always so desolate. It only became so as the cluster dispersed in due time. [More] rss.sciam.com |
Arizona: Parks Are Casualties of Budget Cuts The Arizona State Parks Board has voted unanimously to close 13 parks in response to budget cuts. nytimes.com |
The Humor Gap: Men and Women See Laughter Differently in Romance (preview) When comedian Susan Prekel takes to the stage and spots an attractive man in the audience, her heart sinks. “By the end of my gig he’s going to find me repulsive, at least as a sexual being,” she says.In more than a decade of performing on the New York City comedy circuit the attractive, tall brunette has been asked out only once after a show. But male comics get swarmed. “They do very well with women. I see it all the time,” Prekel says. [More] rss.sciam.com |
Wind Turbine or Airplane? New Radar Could Cut Through the Signal Clutter Wind turbines function best in wide-open spaces where they can capture airflow unobstructed by buildings or mountains. Unfortunately, these same conditions are also optimal for aircraft takeoffs and landings, creating tension between wind energy utilities and airports in a number of locations worldwide. Utility-scale wind turbines, many of which stand more than 100 meters tall, can interfere with the radar used to safely guide aircraft. [More] Wind turbine - Wind power - Energy - Wind - Business rss.sciam.com |