Her customary red sweater, which was always wrapped around a black collared shirt ... The rhythm of one, “In a Dark Time,” was immediately familiar: In a dark time, the eye begins to see ...

London's giant ball pit for adults has had a makeover – all 250,000 balls now glow in the dark. It also has a ball cleaning machine, which can clean 18,000 balls per hour, to make sure the place ...

This makes it easier to track the ball in midair. Eye black is also common in baseball ... the ability to differentiate between light and dark. The results have raised another question.