In the Middle of No-When: The Long and Short of Time
Alexander E. Kaplan
How far along is the universe in its lifespan? Is a second a flash of time or a near-eternity? It all depends on your perspective.
Become a member of OSA or log in to view the full text of this article.
OSA Members get the full text of Optics & Photonics News, plus a variety of other member benefits.