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X-ray is an [[electromagnetic wave]] with a wavelength of about 10^-10 meters, which is beyond the range of wavelength visible to the human eye.  It is often used in hospitals and dental clinics to produce images of patient's internal organs, bones or teeth on a photographic plate.

X-ray is an [[electromagnetic wave]] with a wavelength of about 10^-10 meters, which is beyond the range of wavelength visible to the human eye.  It is often used in hospitals and dental clinics to produce images of patient's internal organs, bones or teeth on a photographic plate.

*X-rays were discovered in 1895 by Wilhelm Conrad Röntgen, who received the first Nobel Prize in Physics in 1901. [http://nobelprize.org/educational_games/physics/x-rays/]

*X-rays were discovered in 1895 by Wilhelm Conrad Röntgen, who received the first [[Nobel Prize]] in [[Physics]] in 1901. [http://nobelprize.org/educational_games/physics/x-rays/]

Ron Curtis wrote:

Ron Curtis wrote:

:X-rays are part of the [[electromagnetic]] spectrum, which includes [[radio]] waves, [[microwave]]s, and visible [[light]]. They have an extremely short wavelength or high frequency, thus giving them high energy. X-rays can penetrate most materials except [[lead]] shielding. They are used in medicine and industry to examine structural problems. When they were discovered, the "X" stood for "unknown," because they were so mysterious. The name has been used ever since. [http://www.school-for-champions.com/science/xrays.htm]

:X-rays are part of the electromagnetic [[spectrum]], which includes [[radio]] waves, [[microwave]]s, and visible [[light]]. They have an extremely short wavelength or high frequency, thus giving them high energy. X-rays can penetrate most materials except [[lead]] shielding. They are used in medicine and industry to examine structural problems. When they were discovered, the "X" stood for "unknown," because they were so mysterious. The name has been used ever since. [http://www.school-for-champions.com/science/xrays.htm]

The very first Nobel Prize for Physics was awarded to Röntgen for the discovery of X-rays. A year later his parents died and Röntgen inherited two million marks. He and his wife were now both rich and famous. He spent much time traveling, with little devotion to further scientific research. [http://ctct.essortment.com/wilhelmroentgen_rght.htm]

The very first Nobel Prize for Physics was awarded to Röntgen for the discovery of X-rays. A year later his parents died and Röntgen inherited two million marks. He and his wife were now both rich and famous. He spent much time traveling, with little devotion to further scientific research. [http://ctct.essortment.com/wilhelmroentgen_rght.htm]