is an important consideration in the modern world of wireless telecommunication. Attenuation limits the range of radio signals and is affected by the materials a signal must travel through (e.g., air, wood, concrete, rain). See the article on path loss for more information on signal loss in wireless communication. See also Acoustic attenuation Air mass (astronomy) Astronomical filter Astronomical seeing Atmospheric refraction Attenuation length Attenuator (genetics) Cross section (physics) Electrical impedance Environmental remediation for natural attenuation Extinction (astronomy) ITU-R P.525 Mean free path Path loss Radar horizon Radiation length Radiography Rain fade Sunset#Colors Twinkling Wave propagation References External links NIST's XAAMDI: X-Ray Attenuation and Absorption for Materials of Dosimetric Interest Database NIST's XCOM: Photon Cross Sections Database NIST's FAST: Attenuation and Scattering Tables Underwater Radio Communication Telecommunications engineering Acoustics