11. As stated above, in the mathematical formulation, the free states correspond to the absolutely continuous spectrum . 12. However, man-made radio signals aren't a continuous spectrum . 13. Rainbows span a continuous spectrum of colours. 14. With suitable restrictions, much can be said about the structure of the eigenvalues and a continuous spectrum . 15. My formula won't work on a continuous spectrum , so I've decided to try it on the hydrogen atom. 16. A rainbow spans a continuous spectrum of colors; the distinct bands are an artifact of human color vision. 17. The case when is not compact is harder, because there is a continuous spectrum , described using Eisenstein series. 18. A hyperspectral image is a " picture " containing continuous spectrum through a wide spectral range at each pixel. 19. The electron energies from beta decay are not discrete but form a continuous spectrum with a cutoff at maximum energy. 20. But there is a continuous spectrum of such sites shading right into the Ukranian Mafia " copywho ? " sites.
