You’ve doubtless seen those ubiquitous clock modules, especially when setting clocks for daylight savings time. You know the ones: a single AA battery, a wheel to set the time, and two or three hands ...

Three white solids are added to a colorless stirred solution. The solution turns orange and after about 75 seconds, colorless. The oscillation continues with an initial period of about 20 seconds at ...

Three colorless solutions are combined into a large beaker and the mixture becomes amber, then blue-black, and then colorless again. This sequence of color changes will repeat with a period of ...