A new study shows how math helps explain why babies nap erratically, teens stay up late, and older adults wake earlier.

COLORED LIGHT PATTERNS. Clip: 5/5/2023 | 5m 57s Video has Audio Description, Closed Captions | AD CC. Zoe Kleinmann and a student make a pattern of light with translucent cups. 05/05/2023 | Rating ...

W hen two or more light waves interact with one another, they result in the formation of different interference patterns. British physicist Thomas Young first demonstrated and explained these ...