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For an infinitely long circular cylinder, the solution of the light scattering problem for the perpendicular incidence was first derived by Rayleigh [ 418 ] who returned to this problem once again in his last work [ 417 ] written a short time before his death. The problem for oblique incidence was solved in 1955 by J.R. Wait [ 491 ] (Kerker [ 274 ] at p.256 mentions also the paper of Blank, 1955); a bit later the same result was obtained in [ 172 ]). ...

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ACTIVITY 3 . ... In this activity, students observe the design of outdoor lighting and discuss how this affects the efficiency and effectiveness of the job which the lighting is intended to do and the degree of light . ... More advanced students may also observe and describe the spectrum of the outdoor lighting and how that is related to the effectiveness of the lighting and to the degree of light pollution. ... An Example: The Light Pollution Project in the Schools in Greece . ...

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56. Karazin University

57. Untitled Document

58. arXiv.org > astro-ph: Latest

59. Dunk Proceedings - 2dF QSO Redshift Survey (Number-Magnitude Relation)

60. Meade Instruments Corporation - Pictor Manual Parts 17 and 18