Under just the right conditions—which involve an ultra-high-intensity laser beam and a two-mile-long particle accelerator—it could be possible to create something out of nothing, according to University of Michigan researchers. The scientists and engineers have developed new equations that show how a high-energy electron beam combined with an intense laser pulse could rip Read More …

  Individual bacterial cells have short memories. But groups of bacteria can develop a collective memory that can increase their tolerance to stress. This has been demonstrated experimentally for the first time in a study by Eawag and ETH Zurich scientists published in PNAS. Bacteria exposed to a moderate concentration of salt survive subsequent exposure Read More …