Patrick Koelsch and Walter Alfred Siebel
The air pressure, temperature and relative humidity in a room with 19 people was measured and compared with the data of a nearby weather station. Significant deviations were found between the in- and outside air pressure. These deviations cannot be explained in terms of meteorological conditions such as temperature gradients and different relative humidities, but are a result of the individual moods. This relation was further supported by air pressure measurements while listening to music.