Color printers use a few color cartridges to print a wide spectrum of color, and are a necessity for printing documents, brochures, and photographs. This photo shows the navigation menu on a color printer with several control buttons.
Volleyball was designed in 1895, as a way to enable a broad spectrum of individuals the opportunity to play a competitive game and still get ample exercise.
Conducting electronic warfare (EW) in the extremely high frequency (EHF) portion of the electromagnetic spectrum may soon pose new challenges for EW practitioners, as terrestrial EHF technologies emerge on the battlefield. ...
Tom Withington, London. Janes 360. Thu, 13 Dec 2018 00:00:00 GMT.
Ultra-short-wave mobile spectrum could add $565 billion to global economic output over the next 15 years if used to connect robots or other applications, the telecoms industry estimates.
Reuters. Wed, 12 Dec 2018 02:09:34 -0500.
Visible Light Colors in the Electromagnetic Spectrum