Sid Perkins
Sid Perkins is a freelance science writer based in Crossville, Tenn.
 
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All Stories by Sid Perkins
- 			 Earth EarthA Stinging Forecast: Model predicts chance of encountering jellyfishWeather forecasters usually prognosticate precipitation, pollen, and poor air quality, but in some areas, they could soon provide beachgoers with the probability of confronting a jellyfish. 
- 			 Paleontology PaleontologyUnknown creature made birdlike tracksPaleontologists have found a multitude of birdlike footprints left by a yet undiscovered creature in rocks more than 60 million years older than Archaeopteryx, the first bird to have left fossils of its body parts. 
- 			 Paleontology PaleontologySkimming the Surface: Flying reptile may have scooped its mealsFossils unearthed in Brazil strengthen the idea that some species of ancient flying reptiles snatched their meals on the fly, snapping up fish as they swooped low over the water's surface. 
- 			 Earth EarthCrisis on Tap?Because people are becoming ever more dependent on underground aquifers as sources of water, scientists are striving to understand better how groundwater systems interact with the water that flows across Earth's surface. 
- 			 Tech TechVoltage from the Bottom of the Sea: Ooze-dwelling microbes can power electronicsSome types of bacteria living in seafloor mud can generate enough electricity to power small electronic devices. 
- 			 Paleontology PaleontologyFossil leaves yield extinction cluesAnalyses of fossil leaves provide more evidence that the mass extinctions that wiped out the dinosaurs 65 million years ago were sudden and probably brought about by an extraterrestrial impact. 
- 			 Paleontology PaleontologyInto the Gap: Fossil find stands on its own four legsA fossil originally misidentified as an ancient fish turns out to be the nearly intact remains of a four-limbed creature that lived during an extended period noted for its lack of fossils of land animals. 
- 			 Paleontology PaleontologyRain Forest Primeval? Colorado fossils show unexpected diversityThe size, shape, and riotous variety of fossil leaves unearthed at a site in central Colorado suggest that the region may have been covered with one of the world's first tropical rain forests just 1.4 million years after the demise of the dinosaurs. 
- 			 Tech TechBuilding a SupermodelResearchers are combining ergonomics and biological research with computer power to build a virtual human that can simulate human biology from anatomy down to the genetic code. 
- 			 Humans HumansDangerous Wake: Wing vortices yield a deadly secretA new mathematical analysis of an aeronautical hazard known as wake turbulence could someday lead to improved air safety and increase the number of flights at major airports. 
- 			 Physics PhysicsVoyager spacecraft still buffeted by sunEven though the two Voyager probes launched in 1977 passed the outermost planets in our solar system more than a decade ago, their sensors show that they can't yet outrun the influence of solar flares. 
- 			 Earth EarthFamed undersea vent may be lostWhen scientists last month tried to revisit an undersea hydrothermal vent first discovered nearly a quarter of a century ago, they found the site desolate, possibly paved by a fresh volcanic eruption.