Physics gets strange when matter gets small. Take electrons orbiting the nucleus of an atom, for example. If they did so with the same dynamics by which planets orbit the sun, classical physics predicts the electrons would spiral toward the nucleus and crash into it in a fraction of a second. But that doesnt happen.
At very low temperatures, classical physics fails to explain phenomena at tiny scales. This is when quantum mechanics kicks in. Scientists are now chilling materials to ne
The fact that infections among adults can increase the risk of heart attacks and strokes is now well established by several hundred scientific studies. Both heart attacks and strokes are expressions of arteriosclerosis (thickening of the arteries, previously termed hardening of the arteries). New research from the Section for Pediatric Cardiology in Lund indicates that infections can also contribute to the early development of arteriosclerosis even in childhood.
Doctor Petru Liuba shows in a
UH Researchers Focus On Diagnosing Eye Disease Using Adaptive Optics
A new optics technology is providing scientists with real-time microscopic images of the living retina, and may allow doctors to focus in on earlier diagnosis and treatment of diseases such as diabetes and glaucoma.
University of Houston researchers are using a technology called adaptive optics to peer inside the eyes of human subjects and for the first time get clear, sharp images of features such as bloo
Pioneer in false memory research presents latest findings at AAAS Symposium
During a recent study of memory recall and the use of suggestive interviewing, UC Irvine cognitive psychologist Elizabeth Loftus successfully planted false memories in volunteers of several study groups — memories that included such unlikely events as kissing frogs, shaking hands with Bugs Bunny at Disneyland, and witnessing a demonic possession.
Her success at planting these memories challenge the
Warming land and ocean surfaces, melting glaciers, rising sea levels, and other recent evidence strongly suggest that Earths climate is already changing rapidly because of the buildup of greenhouse gases in the atmosphere, according to Warren Washington, senior scientist and head of the Climate Change Research Group at the National Center for Atmospheric Research (NCAR). Computer models of Earths climate support these observations, he says, and indicate more severe changes yet to come.
Powerful computer models predict that winter temperatures in the polar regions of the world could rise as much as 10 degrees centigrade in the next hundred years, if no efforts are made to control production of carbon dioxide, methane and other gasses.
“With projections to the year 2100, we can show what will happen if we continue with business as usual—if we don’t do anything to curb emissions of greenhouse gasses,” said Warren M. Washington, senior research scientist for the National Cent