On May 24, 2012, His Royal Highness Prince Willem-Alexander of Oranje visited the Wetsus Water Technology in Leeuwarden alongside the President of the Royal Netherlands Academy of Arts and Sciences, Mr. Robbert Dijkgraaf, and several other VIPs.
Per the official website for Wetsus:
… after an introduction, the group started an extensive lab tour. Six research topics were highlighted and the prince interacted with the researchers about their project. The prince was informed about the newest developments in water technology.
Research topics included in the tour were: “The Inner Structure of the Water Bridge”, “Recovery of Energy from Separated Urine”, “Improvements for Blue Energy”, “Water Saving in Households”, “Breakthrough in Desalination” and “Water Harvesting from Air”.
Sources: RVD and Wetsus.nl