Changes

: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 Roentgen for the discovery of the x-ray. A year later his parents died and Roentgen inherited two million marks. He and his wife were now both rich and famous. He spent much time travelling, with little devotion to further scientific research. [http://ctct.essortment.com/wilhelmroentgen_rght.htm]

The very first Nobel Prize for Physics was awarded to Roentgen for the discovery of the x-ray. A year later his parents died and Roentgen 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]

[[category: physics]]

[[category: physics]]