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Litmus paper shows a strong basic pH result after testing a solution at the Louis F. Garland Department of Defense Fire Academy, Goodfellow Air Force Base, Texas, Oct. 6, 2022. Students dampened the paper with distilled water to test the pH value of the vapor the solution produced. (U.S. Air Force photo by Airman 1st Class Zachary Heimbuch)
CAMERA
NIKON Z 6_2
LENS
NIKKOR Z 24-70mm f/2.8 S
APERTURE
400/100
SHUTTERSPEED
10/1000
ISO
250
No camera details available.
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