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 Shamisen agari," the second string is raised to a fifth from the first string. An example of ni agari is D, A, D. Traditionally there is no musical notation for heike shamisen, and students are expected to learn the melodies by heart. In recent times, however, common melodies have been written down in tablature notation to facilitate learning. Heike Shamisen The heike shamisen (Japanese: ), is a Japanese musical instrument, member of the shamisen family. Like its other counterparts, the heike shamisen has three strings, a slender neck, a body taut with skin, and it is plucked with a plectrum called