21 March 1997
Vol 275, Issue 5307

About The Cover

Collage, obtained with a microscope and cross polarizers, of a multiple emulsion of water droplets in larger drops of a nematic liquid crystal. The nematic appears colored, and the water droplets appear darker. The nematic induces novel interactions among the water droplets, causing them to form linear chains and to lie near the center of the nematic drops (central droplet, 130 micrometers in diameter). See 1770 and the related Perspective on 1751. [Image: P. Poulin, H. Stark, T. C. Lubensky, D. A. Weitz, and F. Macera]