Science

Schematic illustration of electrically injected germanium tin laser and its power generation versus current and spectrum characteristics. Credit: University of Arkansas Materials science researchers, led by electrical engineer Shui-Qing “Fisher” Yu, have demonstrated the first electrically injected laser made of germanium tin. Used as a semiconductor material for circuits on …

Rods of multivariate MOFs (left) can be programmed with different metal atoms (colored balls) to perform a series of chemical tasks, such as controlled release of drugs, or to encode information such as those and zeros in a digital computer. Credit: UC Berkeley image by Omar Yaghi and Zhe Ji …

American actor Robin Williams arrives at the European premiere of “Happy Feet Two” in central London on November 20, 2011. (CARL COURT / AFP via Getty Images) A documentary about the last days of comedy hero Robin Williams will tell how the actor fought a rare neurological disorder in the …

Fires are paving the way for humans to evolve into the species we are today. Scientists think that without a control over fire, humans would probably never have developed large brains and the benefits that come with it. But when did people first discover how to use fire? “That’s a …

As people become accustomed to living with coronavirus, social distancing and mask protocols also become easier. America’s COVID-19 death toll in the US could reach nearly 300,000 by December 1, but consistent mask-wearing early today could save some 70,000 lives, according to new projections based on current death toll and …