Delft University of Technology Iranian Election Protests. The biggest number of international students studies at Aerospace Engineering and Electrical Engineering, Mathematics, and Computer Science departments. Currently TU Delft is a home to 437 faculty, with more than 3,375 academic staff. The responsibility of TU Delft professors is lecturing, guiding undergraduate and graduate students, as well as performing original research in their respective fields. Many notable people were TU Delft faculty. In science, Heike Kamerlingh Onnes, a 1913 Nobel Laureate in physics, a discoverer of superconductivity, was a former TU Delft faculty member, working as an assistant to Johannes Bosscha. Discoverer of the Prins reaction
Leiden scale Leiden scale The Leiden scale (°L) was used to calibrate low-temperature indirect measurements in the early twentieth century, by providing conventional values (in kelvins, then termed "degrees Kelvin") of helium vapour pressure. It was used below -183°C, the starting point of the International Temperature scale in the 1930s (Awbery 1934). The Leiden scale probably goes back to around 1894, when Heike Kamerlingh Onnes' cryogenic laboratory was established in Leiden, Netherlands. It has been reported that the scale is the kelvin scale shifted so that the boiling points of hydrogen and oxygen become zero and 70 respectively, but this is unlikely