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(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…
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(Encyclopedia) science fiction, literary genre in which a background of science or pseudoscience is an integral part of the story. Although science fiction is a form of fantastic literature, many of…
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(Encyclopedia) Egyptian art, works of art created in the geographic area constituting the nation of Egypt. It is one of the world's oldest arts.
The art of the New Kingdom (1570–1342 b.c.) can…
(Encyclopedia) space medicine, study of the medical and biological effects of space travel on living organisms. The principal aim is to discover how well and for how long humans can withstand the…
