Atmospheric Pressure Change Measurement: An Observational Case Study
Annual Research & Review in Biology,
Introduction: The aim of the study was to show atmospheric pressure change by indirect measurement in hermetically closed vessels during four years follow-up.
Methods: Study design: an observational case study. In hermetically sealed elastic bottles with different liquids were measured differences in liquid and air volumes from baseline to four years follow-up period. Physical law of buoyancy was used to measure in each bottles liquid and air (above the liquid) volumes.
Results: Volumes of liquid and air in all bottles were decreased after the follow-up period to 14.38±2.40 and 36.25±3.37 ml, respectively. Air volumes in comparison to liquid volumes decreased more than two times significantly (P=0.0007) after follow-up period.
Conclusions: Thus, atmospheric pressure increased for the last four-year follow-up period. Further investigations are needed.
- Atmosphere pressure
- climate change
- observation study
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