electromagnetic spectrum
Your Future Smartphone Camera Could See Through Your Skin
'HyperCam' uses infrared as well as visible light to see under surfaces.
India Launches ASTROSAT, Its First Space Observatory
The multi-wavelength observatory is set to give India a new view of the stars.
Air Force Pilots Are Learning to Fly Blind Against Chinese Electromagnetic Strikes
It's one of the greater ironies of today's remote warfare.
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