ORAS became active in the early 1970s as a counterbalance to AAG. Currently those two parties are competing each year for seats in TU Delft's Students Council (). Further, all student organizations of TU Delft are associated with The Council of Student Societies Delft VeRa () and The Society for Study and Student Matters Delft VSSD (). Apart from bachelor and master student organizations, PhD students of TU Delft have their own organization called Promood (PhD Students Discussion Group Delft) (), which represents TU Delft PhD students at the university. It is also a member of Dutch PhD Students Network (). Each faculty of TU Delft has its own set of professional student organizations. Numerous societies are present at the university, many of them with rich traditions, customs and history. For example, aerospace engineering department hosts Foundation for Students in Airplane Development, Manufacturing and Management (), while civil engineering department Society for Practical Studies. International professional student organizations are also present at TU Delft, including European Association of Aerospace Students. Apart from professional student societies, students organize themselves only for the purpose of enriching their social life. Many of the societies have sectarian roots, like a Catholic Wolbodo Student Society, Katholieke Studentenvereniging Sanctus Virgilius Delft, that during the course of the years lost the religious affiliations and accepts students from any denomination. Besides societies which have their roots in religion, there are also general (with no religious bonds) societies. One of these is Sint Jansbrug. These societies accept anyone who studies at the TU Delft or any other higher education facility in the Delft area. Also organization that has its roots in Rover Scout movement Delftsche Zwervers (at the same time the oldest student scouting group in the world) is present or local branch of the European AEGEE. Student sports are organized around clubs, that focus mostly on single discipline. Those include rowing society Laga and rowing club Proteus-Eretes (both with many Olympic medals won by the members of the club) or American football club Delft Dragons. TU Delft researchers developed many new technologies used today, including Glare, a Fibre Metal Laminate used in Airbus A380 skin and Vision in Product Design design method. Cees Dekker's lab at TU Delft demonstrated in 1998 the first transistor made out of single nanotube molecule. Delta Works plan was, in part, a child of TU Delft graduates, including Johan Ringers and Victor de Blocq van Kuffeler.