In 1996, Rain Robinson performed a Fourier spectral analysis at the Griffith Observatory, when Tom Paris told her that her "curves don't look so great," in relation to the analysis. (VOY: "Future's End") Data noted, in 2370, that he knew that his mother was an android because, as he stated, "the intervals between blinks were governed by the Fourier system, the same mathematical formula my father used to give my blinking pattern the appearance of randomness." (TNG: "Inheritance" ) Fourier analysis is named after Joseph Fourier's introduction of the Fourier series.