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gamma-ray astronomy
(Encyclopedia) gamma-ray astronomy, study of astronomical objects by analysis of the most energetic electromagnetic radiation they emit. Gamma rays are shorter in wavelength and hence more energetic…Ray, Satyajit
(Encyclopedia) Ray, SatyajitRay, Satyajitsätyäˈjĭt rī, rā [key], 1921–92, Indian film director, b. Calcutta (now Kolkata). His subtle, austere, and delicately lyrical films made him one of the…X ray
(Encyclopedia) CE5 Typical X-ray composite spectrum (intensity as a function of frequency) X ray, invisible, highly penetrating electromagnetic radiation of much shorter wavelength (higher…Biographies: Deaths of 2012
Deaths of 2012 See also 2011 Deaths 2010 Deaths More Deaths…stingray
(Encyclopedia) stingray: see ray.sawfish
(Encyclopedia) sawfish: see ray.guitarfish
(Encyclopedia) guitarfish: see ray.manta
(Encyclopedia) manta: see ray.whipray
(Encyclopedia) whipray: see ray.Roentgen ray
(Encyclopedia) Roentgen ray: see X ray.Trending
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