Germicidal lamps are specially designed lights that kill microorganisms and are used to clean wastewater, workspaces, and medical and scientific tools. The lamps work by emitting ultraviolet light that damages microorganismal DNA, rendering pathogens harmless or removing their reproductive capabilities. Some germicidal lamps also produce ozone, a substance known to have disinfectant properties. Why must people take care to shield their eyes and skin from the light these lamps emit?
Sir Walter Scott
Back in the day
Lisa Halaby is the fourth wife and widow of the late King Hussein of Jordan. She was raised and educated in the US, graduating from Princeton University in 1974. An architect-planner by training, she met King Hussein while working in Jordan on the development of the Amman Intercontinental Airport. They married on June 15, 1978. Halaby converted to Islam and, before the marriage took place, changed her first name from Lisa to Noor, an Arabic word meaning what?
Born on a day like today
Fenn was awarded the Nobel Prize in Chemistry in 2002 for his work in the field of mass spectrometry. His discovery increased the speed at which complex new pharmaceutical compounds could be evaluated, leading to the development of life-saving AIDS medications in the mid-1990s. As part of Yale University's faculty, he reached mandatory retirement age in 1987 and had to fight to be able to stay on and begin his Nobel Prize-winning work at what age?