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Image Number K8166-11 |
Using a differential scanning calorimeter, plant physiologist Christina
Walters can detect phase-state changes of water and lipids in seeds. First she
cools thin slices of seed tissues sealed in tiny aluminum pans (held in
tweezers) to -170°C. The relationship she finds between a seed's water
content, temperature at which its heat capacity changes, and size of the change
give clues about the nature of glasses that form.
Photo by Scott Bauer.
640 pixels wide: (k8166-11.jpg)
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Last Modified: 05/23/2006
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