Superconducting magnet issues "shaken" out of them, until they are eventually able to operate reliably at their full planned current without experiencing quenches. Although the idea of making electromagnets with superconducting wire was proposed by Heike Kamerlingh Onnes shortly after he discovered superconductivity in 1911, a practical superconducting electromagnet had to await the discovery of superconducting materials that could support large critical supercurrent densities in high magnetic fields. The first successful superconducting magnet was built by G.B. Yntema in 1955 using niobium wire and achieved a field of 0.7 T at 4.2 K. Then, in 1961, J.E. Kunzler, E. Buehler, F.S.L. Hsu,
Delft University of Technology Hanjalić, and the first Dutch prime minister of the Netherlands after World War II Wim Schermerhorn. Two TU Delft alumni were awarded Nobel Prize and one recipient has been affiliated with TU Delft: Jacobus van 't Hoff was awarded first Nobel Prize in Chemistry in 1901 for his work with solutions. Simon van der Meer was awarded Nobel Prize in physics in 1984 for his work on stochastic cooling and one has been affiliated with TU Delft, Heike Kamerlingh Onnes in 1913 for studies related to liquefaction of helium in the quest for the lowest temperature on Earth. Some of