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United States CIRCA 1960s: 1960s: bubbles rise from end of pipette leading into upside-down glass bottle in glass pan of water, level of water in bottle drops
1970s: woman in lab coat closes door as man sits at desk and adjusts microscope in laboratory. single cell organisms float. grainuals of PHB grow. powder drops into beaker. weight appears on scale.
1950s:Hands stir white liquid in beaker. Hands stirs white powder into clear liquid in beaker.
1950s: Toothbrushes move back and forth in testing machinery of factory lab. Scientist removes teeth from test tube and tests them in acid solution.
CIRCA 1970 - A fish is dissected and a swim bladder is removed and a scientist explains neutral buoyancy and resonate frequencies.
Laboratory Equipement: Syringe and Medicine, Test Tubes and Flasks Rotating on Black Background.
Washed bottles at a plant, close up.

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1108285109

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Stock Video ID: 1108285109

United States CIRCA 1960s: Potassium Iodide is added to beaker of water and stirred to dissolve

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