Hans Lippershey that time he became a master lens grinder and spectacle maker and established a shop. He remained in Middelburg until his death, in September 1619. Hans Lippershey is known for the earliest written record of a refracting telescope, a patent he filed in 1608. His work with optical devices grew out of his work as a spectacle maker, an industry that had started in Venice and Florence in the thirteenth century, and later expanded to the Netherlands and Germany. Lippershey applied to the States General of the Netherlands on 2 October 1608 for a patent for his instrument ""for seeing
Water supply and sanitation in the Netherlands Research Institute. According to the Netherlands Water Information Network, the Netherlands has “developed a coherent knowledge infrastructure in the water sector, comprising government and private research centres, technological and educational institutes (such as Alterra, UNESCO-IHE, ITC, Deltares) and several universities”. These institutes carry out a broad range of basic and applied research, from hydraulic engineering to integrated water management. The institutes have formed close connections with internationally oriented private sector companies. The institutes “have built up considerable networks and experience in water-related issues at international level”. Lessons learned abroad have also been successfully applied in the Netherlands. For example, the