Table of Contents

cover image

Volume 25, Number 1
11 January 2006

pp 1-266

The traditionally harsh Boston winter produced a beautiful formation of icicles on a Japanese maple (Acer palmatum). Icicles develop because of the competition between gravity and surface tension in the water. Ripples are created that form an icicle root upon freezing. They grow as water dripping over the roots freezes in progressive layers. The picture was taken by Julia Schaletzky, currently a PhD student in Tom Rapoport�s Lab at Harvard Medical School in Boston, USA.

View larger image