Superconductivity and carbon nanotubes, are Type I, while almost all impure and compound superconductors are Type II. Conversely, a spinning superconductor generates a magnetic field, precisely aligned with the spin axis. The effect, the London moment, was put to good use in Gravity Probe B. This experiment measured the magnetic fields of four superconducting gyroscopes to determine their spin axes. This was critical to the experiment since it is one of the few ways to accurately determine the spin axis of an otherwise featureless sphere. Superconductivity was discovered on April 8, 1911 by Heike Kamerlingh Onnes, who was studying the resistance
Heike ondo 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 the area. Heike Ondo has a quick, up-beat tempo, and it is always performed with particular taiko ensembles including two taiko drums and a sake barrel, called a "taru", each. A single drummer alternates between the two