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,
Heike ondo Heike Ondo is marked by the following kakegoe: "A arya arya makkashoi!" "A yosa yosa!" "A yato e, sora e no yato e no e!" and "A dokkoi, dokkoi!" Video of Heike Ondo and Heike Odori Performers Heike ondo Heike ondo (平家音頭) is a Japanese folk song that originates from Shimonoseki, Yamaguchi Prefecture in Japan. The song is basically a narrative of the Battle of Dan-no-ura, which was a major sea battle of the Genpei War, occurring at Dan-no-ura, in the Shimonoseki Strait. It is played during the summer to accompany the Heike Odori, which is the bon dance of