Crews thought they had the massive Montco industrial fire under control. Then came the billowing smoke and evacuation notices.
The company, SPS Technologies, has a history of environmental and workplace violations, records show. Residents were sheltering in place and worried about the air quality.
Researchers develop first room temperature holmium-doped yttrium lithium fluoride thin disk laser
In a study published in Optics Express, a research group led by Prof. Fu Yuxi from Xi'an Institute of Optics and Precision ...