Is it just me or is it getting hot in here?

A lot of people assume this little contraption is there to record earthquakes. But it’s not a seismograph; it’s another kind of graph – a thermohygrograph to be precise. It records temperature and relative humidity, which is very important when your business is the storing and displaying of old, delicate, precious and rare objects that can be very susceptible to fluctuations in heat or moisture levels. Did you know that your hair responds to humidity changes by expanding or contracting? In fact, human hair is such a sensitive gauge that the thermohygrograph actually uses a bunch of it to monitor the environment in here.