300 dpi: (d2729-1.jpg)
640 pixels wide: (d2729-1.jpg)
 Image Number D2729-1 |
Plant physiologist Arland Hotchkiss (right) adds sugar beet pulp and polylactic acid to an extruder to make the bioplastic strips that chemist LinShu Liu is inspecting.
Photo by Peggy Greb.
