The climate in museums is subject to special standards. Ideally, the temperature should not exceed or fall below 20 degrees +/- 2%, and the humidity should be around 50%, also +/- 2%. A practical way of checking both requirements is to use a combined recording device: the thermohygrograph. It measures and records both values in measurement curves on a sheet of paper that is attached to a drum for a specific period of time. A U-shaped bimetal is used to measure the temperature, and a strip of hair is used to measure the humidity. The hair is prepared using a special process, which results in short setting times for a wide temperature range. Since around 2009, Hans Angerer has been integrating cut-out titles and headlines that contain the word “art” into various work cycles. In 2015, for example, they created “Art in the Dark”. B. his collage "The Wave" mounted after Hokusai as well as the series "Forever Unfinished" 2021 and "Art is a House" 2022. In this work, too, he has mounted the cut-out lines on the sheet of paper that normally documents the climate records. Angerer has attached a funnel like a gramophone, as if the device were capable of audibly carrying out the fine recordings along with the ticking of time. The device that uses a human hair to detect the smallest climate fluctuations is able to document the changes in the climate, but it cannot influence the climate. The human, whose seismographically acting hair sits so close to the brain, also appears like the device: it documents the climate changes, but also seems incapable of intervening. Or is it?