Prime number the 1970s, mathematicians and physicists have speculated that the zeros of the Riemann zeta function are connected to the energy levels of quantum systems. Prime numbers are also significant in quantum information science, thanks to mathematical structures such as mutually unbiased bases and symmetric informationally complete positive-operator-valued measures. The evolutionary strategy used by cicadas of the genus "Magicicada" makes use of prime numbers. These insects spend most of their lives as grubs underground. They only pupate and then emerge from their burrows after 7, 13 or 17 years, at which point they fly about, breed, and then die after a
17-11-70 that album producer Gus Dudgeon remixed the tracks to create a notably different sound from the original US LP mixes. In addition to level changes, Dudgeon's version also added some echo and other effects not present in the earlier mixes, which has drawn mixed reactions from fans. The 2017 Record Store Day special reissue features the six remained-unreleased songs from the concert, plus "Amoreena" (featured on the 1996 CD). The track listing for the first two sides is the same as the original 1970 release. Note Production Album 17-11-70 17-11-70 (US title "11-17-70"), released in 1971, is the fifth official