Rain gauges work very simply – rainwater enters through an opening in the top and collects in the container. Marks on the side show how many millimetres of rain have fallen since it was last emptied.
Te whakamahi i tēnei tūemi
Private collection
Photograph by Allan Gillingham
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Tukunga
Hi, Where can you purchase
Barrie Honan (not verified)
13 o Pēpuere 2018
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