This month's cover story takes a look at organic light emitters that can enable better electronic displays. Our second article explores how sound waves powerfully shaped the early universe. Then, in another Cosmology article, we see how leakage of gravity might cause cosmic acceleration. In the fourth article, new insights into shock could help treat the thousands of people who die from it every year. Finally, criminologists are on the case of the unsolved crime decline.
©2004 Scientific American