I appraise my fair share of antique and vintage clocks via my public appraisal events and through photo submissions to my website, DrLoriV.com. Some of the most intriguing clocks of all types are from ...

As the precision and portability of atomic clocks continue to improve, University of Delaware physicist Marianna Safronova and collaborators Yu-Dai Tsai of the University of California, Irvine, and ...

Inside a laboratory nestled in the foothills of the Rocky Mountains, amid a labyrinth of lenses, mirrors, and other optical machinery bolted to a vibration-resistant table, an apparatus resembling a ...