A variety of sunshine recorders were invented, with the Campbell-Stokes Recorder quickly becoming the most popular. In fact many are still in use to this day.
advantage of the Campbell-Stokes Recorder is that it is incredibly easy to use. Much like a simple fire extinguisher a young child properly instructed would be able to operate one of these marvellous contraptions. Plus it is a truly global device – it can be used anywhere in the world. Relatively inexpensive it also has another major advantage – no moving parts whatsoever. It is one of the most low maintenance pieces of scientific equipment you could hope to come across.
First Image Credit
Other Image Credits
Stokes - Image Credit Wikimedia
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