The X-ray machine was invented by Wilhelm Röntgen in 1895. How he discovered the properties of X-rays is unknown, but the first X-ray image ever published was one that he took of his wife's hand.
X-rays were almost immediately used for further research. Other scientists began taking radiographs in clinical settings within weeks of Röntgen's first X-ray image. Due to his discovery and naming of X-rays, this form of electromagnetic radiation is also called a "Röntgen-ray." Wilhelm Röntgen won the Nobel Prize in Physics in 1901. Although the principle of early X-ray machines was the same as in modern machines, the early equipment required much larger doses of radiation, in some cases up to 1500 times the modern amount.Learn More
X-rays were discovered in 1895 by Wilhelm Conrad Roentgen. By 1896 X-rays were being used by battlefield physicians to locate bullets in wounded soldiers. X-rays were used primarily in medicine and dentistry until 1912. When high-vacuum tubes were invented by William Coolidge, which produced up to 100,000 volts, higher voltages produced rays of adequate penetrating power for industrial applications.Full Answer >
The cathode-ray tube, also called Braun's electrometer, was invented by Ferdinand Braun in 1897. The cathode-ray tube was the technology behind most displays, including televisions and computer screens, for over 100 years.Full Answer >
X-rays occur in nature, and they were discovered by Wilhelm Conrad Roentgen, a German professor at Wuerzburg University in 1895. The discovery was made by applying high-voltage current to a cathode ray tube.Full Answer >
The karaoke machine was invented by a Japanese man named Daisuke Inoue. According to The Atlantic Monthly, Inoue was a drummer who was making his living by playing in bars when he got the idea for the machine.Full Answer >