UV light

A South Korean company named Seoul Semiconductor claims to have developed an ultraviolet light-emitting diode (UV LED) that can kill 99.9% of SARS-CoV-2 in 30 seconds.
Boeing has designed self-cleaning airplane bathrooms that implement UV light. To stop the spread of infectious disease, the entire airplane cabin -- and perhaps other public places -- should also be bathed in UV light.
Covering some 40,000 square miles with an average elevation of 13,000 feet, the Atacama is located mostly in Chile. But its outer regions stretch into nearby Peru, Bolivia and Argentina. What's more, it's home to the driest spot on Earth.
For various reasons, fruits and vegetables grown out-of-season don't taste as good as the in-season variety. And some foodies turn their nose up at greenhouse-raised tomatoes. But a team of researchers from Purdue University wanted to determine if it was possible to enhance their flavor.