Thousands of Dutch citizens take part in the first national iSPEX-measure-day

The first Dutch national iSPEX-measure-day yielded more than 5000 measurements. With this enough data has been gathered to call the iSPEX-measure-day a valid scientific experiment. iSPEX-teamleader Frans Snik is happy with the massive response of the participants, despite the long wait for good weather and dawning summer holiday..

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