80-string koto [SEP] discoverer or inventor
80-string koto
The 80-string koto, called "hachijugen" (kanji: 八十絃; hiragana: はちじゅうげん) in Japanese, was an invention of Japanese composer Michio Miyagi which appeared In 1923. He added 67 strings to the traditional 13 string koto design, creating an instrument much like a western harp. Together, the 80 strings provide a far larger pitch range than the standard Koto. It is widely seen as a short-lived experimental instrument. 
Construction.
The 80-string koto was largely hand-constructed as only limited
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In 1982 the Belarusian inventor Anatoly Yunitskiy also proposed an electromagnetic track encircling the Earth, which he called the "String Transportation System." When the velocity of the string exceeds 10 km/sec, centrifugal forces would detach the string from the Earth's surface and lift the ring into space.
Dynamic structures Launch loop.
A launch loop or Lofstrom loop is a design for a belt-based maglev orbital launch system that would be around 2000 km long and maintained at an altitude of up to 80