Annals of Improbable Research (AIR)
Cover Image for Volume 2, Issue 4
This "micro-space shuttle" on the front cover is actually a photomicrograph (magnification approx.240,000) of a single layer of silver on a gold surface. THe fingerlike growth of the silver was diffusion-driven. Each shade represents a different atomic level. Photo: Michael Ross, Almaden Research Center, IBM Research Division, San Jose CA.