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, ...

When humans interact with each other and engage in everyday activities, they typically follow various undefined rules, also known as social norms. These rules include things like greeting ...

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 ...