Sid Perkins' Articles
- NewsEvidence trapped in 250-million-year-old sediments may help researchers pin the ultimate blame for the massive extinctions that occurred then on the impact of an extraterrestrial object about 9 kilometers across.
- NewsResearchers have developed a composite material that has the ability to repair small cracks within itself, a characteristic that could be used to extend the reliability and service life of electronic and aerospace components.
- NewsThe strength of the winter weather feature called the Siberian high is linked to the amount of early-season snow cover in its namesake region.
- NewsThe inactivity of a single enzyme in peat due to the lack of oxygen may be the only thing preventing massive releases of carbon dioxide from the peatlands.
- NewsThe recent discovery of several dozen extinct bee species in ancient amber deposits has led one paleontologist to propose that the very success of some bees' social lifestyle led to today's dearth of hive-dwelling species.
- NewsOne of the largest glaciers in Antarctica is growing thinner and retreating inland, spurring concerns that changes occurring along the coastline may be causing the ice stream to drain more material from the interior of the continent and send it out to sea, thus aggravating rising sea levels.
- NewsAnalyses of the shock waves recorded at seismic stations across northern Europe indicate that the Russian submarine Kursk sank due to onboard explosions, not a run-in with another vessel.
- NewsA team of paleontologists who dug up a new dinosaur recently chose to name their find after singer-songwriter Mark Knopfler, guitarist and cofounder of the rock group Dire Straits.
- FeatureMany scientists propose that changes in the sun's magnetic field and radiation output during its 11-year sunspot cycle also affect the atmosphere, changing Earth's climate by steering weather systems and influencing the amount of cloud cover.
- NewsResearchers have developed a four-component system that acts like an on-vehicle oil refinery and may help significantly reduce the hydrocarbon emissions from internal combustion engines.