image: Pacific Northwest National Laboratory's ultrasonic rheometer, shown here testing tomato paste, measures the viscosity and other physical characteristics of various liquids. view more
Credit: Courtesy of Pacific Northwest National Laboratory.
DOE/Pacific Northwest National Laboratory
image: Pacific Northwest National Laboratory's ultrasonic rheometer, shown here testing tomato paste, measures the viscosity and other physical characteristics of various liquids. view more
Credit: Courtesy of Pacific Northwest National Laboratory.
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