Physicists at the University of Colorado Boulder have created the first time crystal that humans can actually see, using liquid crystals that swirl into never-ending patterns when illuminated by light ...

Introduction Sex disparities in suicide mortality persist worldwide, with male rates 2–4 times higher than female rates, but ...

Imagine a clock that doesn't have electricity, but its hands and gears spin on their own for all eternity. In a new study, physicists at the University of Colorado Boulder have used liquid crystals, ...

A time crystal is a form of matter that shows continuous, repeating patterns over time, much like how atoms in a normal crystal repeat in space. Examples once existed in only complex, quantum matter, ...

Changes in driving frequency, complexity, and spatial range were associated with mild cognitive impairment in older adults. Trip distances, speeding, and destination variability distinguished mild ...

Concern over student attendance has intensified since the pandemic, when chronic absenteeism rose sharply and has now only partially receded. Using daily attendance records covering all students in ...

A cup of chamomile tea. A glass of warm milk. The classic turkey sandwich. Certain foods and drinks have a reputation for making us sleepy. But it may not be a particular snack that does the trick. A ...