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Wikipedia: X-radiation (composed of X-rays) is a form of electromagnetic radiation. X-rays have a wavelength in the range of 10 to 0.01 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3 × 10 Hz to 3 × 10 Hz) and energies in the range 12 eV to 120 keV. They are shorter in wavelength than UV rays.
![[X-ray of a needlefish]](http://images.ookaboo.com/photo/s/X_RayOfNeedlefish_1_s.jpg "X-ray of a needlefish")
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![[1896 plaque published in "Nouvelle Iconographie de Salpetriere", a medical journal]](http://images.ookaboo.com/photo/s/X_ray_1896_nouvelle_iconographie_de_salpetriere_s.jpg "1896 plaque published in \"Nouvelle Iconographie de Salpetriere\", a medical journal")
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 from Dazeley |
 from Garrondo |
![[Shown is a male technician taking an x]](http://images.ookaboo.com/photo/s/Historical_X_ray_nci_vol_1893_300_s.jpg "Shown is a male technician taking an x")
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![[A female chest x-ray demonstrating a hiatus hernia.]](http://images.ookaboo.com/photo/s/Radiograf_C3_ADa_pulmones_Francisca_Lorca_cropped_s.jpg "A female chest x-ray demonstrating a hiatus hernia.")
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from Stevenfruitsmaak |
 from Diego Grez |
![[Brain CT Scan image slice]](http://images.ookaboo.com/photo/s/Brain_CT_scan_s.jpg "Brain CT Scan image slice")
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![[X-Ray of a pregnant woman.]](http://images.ookaboo.com/photo/s/Preg_xray_s.jpg "X-Ray of a pregnant woman.")
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from Afiller |
from Tannim101 |
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