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$Electromagnetic spectrum / Gas discharge lamps / Vision / Signage / Spectroscopy / Emission spectrum / Sodium-vapor lamp / Diffraction grating / Visible spectrum / Physics / Electromagnetic radiation / Optics$	SPACE UPDATE ACTIVITY PAGE 1 OF 2 Add to Reading List Document Date: 2002-10-05 17:54:14 Open Document File Size: 1,03 MB Share Result on Facebook Company Hertz / Roy G. Bv / / IndustryTerm thin gas / illuminated thin gas / lowest energy waves / / Technology X-ray / / SocialTag Electromagnetic spectrum Gas discharge lamps Vision Signage Spectroscopy Emission spectrum Sodium-vapor lamp Diffraction grating Visible spectrum Physics

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