Email Print Share
March 27, 2006

Xu-Ting Roots

"Xu-Ting Roots." Looking like tree roots, this captivating band of features was produced by placing an electric field across the surface of a thin polymer film, causing the surface of the film to become unstable, forming a wave pattern on the surface that grows as time passes. Eventually a band of lines is seen that resemble the roots of a tree. This image was captured in an optical microscope. The colors arise from light reflecting off the surface of the polymer and the underlying support. The colors tell you what the thickness of the film is, and so, the contour of the surface can be directly measured. In this image, the roots appear to be shooting across the field of view.

This imagery provides a unique avenue by which an interest and appreciation of scientific research can be nurtured. It is precisely this concept that underpins VISUAL (Ventures in Science Using Art Laboratory), a recently launched educational outreach program of the Materials Research Science and Engineering Center on Polymers (MRSEC) (supported by the National Science Foundation's Materials Research Science and Engineering Centers Program) at the University of Massachusetts Amherst. VISUAL is based on the premise that the visual arts can serve as an effective means to stimulate, educate and promote materials science research to the general public and to students of all ages.

Credit: VISUAL, Materials Research Science and Engineering Center, University of Massachusetts, Amherst

See other images like this on your iPhone or iPad download NSF Science Zone on the Apple App Store.


Images and other media in the National Science Foundation Multimedia Gallery are available for use in print and electronic material by NSF employees, members of the media, university staff, teachers and the general public. All media in the gallery are intended for personal, educational and nonprofit/non-commercial use only.

Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.

Additional information about general usage can be found in Conditions.

Also Available:
Download the high-resolution JPG version of the image. (1.5 MB)

Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.