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Explain the hittorf and moving boundary method for determination of transport number?
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The parts and function of electron microscope?
eyepiece body tube coarese adjustment fine adjustment revolving nose piece objective arm stage clip stage inclination joint base mirror diagraph
How were the protons discovered?
The atomic nucleus was discovered by Ernest Rutherford in 1911. In 1913, it was proven that the charge of the nucleus was equal to its atomic number. In 1919, Rutherford proved that the nuclei of all atoms contained particles described as hydrogen nuclei, and this is considered the discovery of the proton.
When was Johann Wilhelm Hittorf born?
Johann Wilhelm Hittorf was born on 1824-03-27.
When did Johann Wilhelm Hittorf die?
Johann Wilhelm Hittorf died on 1914-11-28.
Why did Nikola Tesla invent the x-ray?
He didn't. Tesla did not invent the X-Ray. Wilhelm Röntgen did.Tesla is often reported as the inventor or discoverer. He did neither.X-rays even by electronic means were well known to fog film by the time Tesla reported his discoveries. He made some observations - which have been widely touted by the press but his work with them was actually pretty limited.X-rays, were observed by both Johann Hittorf and William Crookes in the 1870s with Crookes tubes. The effects of them wouldn't be understood to the uses we have for them today until Rontgen's work in 1889.
What woman scientists discovered radiation that we can'tsee but can be used to take pictures of the insides of our bodies?
William Crookes, Johann Hittorf, Ivan Pulyui, Fernardo Sanford, Hermann von Helmholtz, Nikola Tesla, and Wilhelm Roentgen all can claim with varying degrees of honesty to have discovered such rays. (Roentgen usually gets main credit; he wasn't the first to notice them, but he was the first to actually study them in any depth.) None of them, however, can claim with any degree of honesty whatsoever to have been women. I don't know what kind of revisionist Womyn's Studies teacher assigned you this homework question, but she's stretching the truth considerably if she says that X-rays were discovered by "woman scientists".
How are X-ray waves created?
Discovery of x-raysHand mit Ringen: print of Wilhelm Röntgen's first "medical" x-ray, of his wife's hand, taken on 22 December 1895 and presented to Professor Ludwig Zehnder of the Physik Institut, University of Freiburg, on 1 January 1896[4][5] An X-ray picture (radiograph) taken by Röntgen of Albert von Kölliker's hand at a public lecture on 23 January 1896[6]During 1895 Röntgen was investigating the external effects from the various types of vacuum tube equipment-apparatus from Heinrich Hertz, Johann Hittorf, William Crookes, Nikola Tesla and Philipp von Lenard-when an electrical discharge is passed through them.[7] In early November he was repeating an experiment with one of Lenard's tubes in which a thin aluminum window had been added to permit the cathode rays to exit the tube but a cardboard covering was added to protect the aluminum from damage by the strong electrostatic field that is necessary to produce the cathode rays. He knew the cardboard covering prevented light from escaping, yet Röntgen observed that the invisible cathode rays caused a fluorescent effect on a small cardboard screen painted with barium platinocyanide when it was placed close to the aluminum window. It occurred to Röntgen that the Hittorf-Crookes tube, which had a much thicker glass wall than the Lenard tube, might also cause this fluorescent effect.In the late afternoon of 8 November 1895, Röntgen determined to test his idea. He carefully constructed a black cardboard covering similar to the one he had used on the Lenard tube. He covered the Hittorf-Crookes tube with the cardboard and attached electrodes to a Ruhmkorff coil to generate an electrostatic charge. Before setting up the barium platinocyanide screen to test his idea, Röntgen darkened the room to test the opacity of his cardboard cover. As he passed the Ruhmkorff coil charge through the tube, he determined that the cover was light-tight and turned to prepare the next step of the experiment. It was at this point that Röntgen noticed a faint shimmering from a bench a meter away from the tube. To be sure, he tried several more discharges and saw the same shimmering each time. Striking a match, he discovered the shimmering had come from the location of the barium platinocyanide screen he had been intending to use next.Röntgen speculated that a new kind of ray might be responsible. 8 November was a Friday, so he took advantage of the weekend to repeat his experiments and make his first notes. In the following weeks he ate and slept in his laboratory as he investigated many properties of the new rays he temporarily termed X-rays, using the mathematical designation for something unknown. Although the new rays would eventually come to bear his name in many languages where they became known as Röntgen Rays, he always preferred the term X-rays. Nearly two weeks after his discovery, he took the very first picture using x-rays of his wife's hand, Anna Bertha. When she saw her skeleton she exclaimed "I have seen my death!"The idea that Röntgen happened to notice the barium platinocyanide screen misrepresents his investigative powers; he had planned to use the screen in the next step of his experiment and would therefore have made the discovery a few moments later.At one point while he was investigating the ability of various materials to stop the rays, Röntgen brought a small piece of lead into position while a discharge was occurring. Röntgen thus saw the first radiographic image, his own flickering ghostly skeleton on the barium platinocyanide screen. He later reported that it was at this point that he determined to continue his experiments in secrecy, because he feared for his professional reputation if his observations were in error.Röntgen's original paper, "On A New Kind Of Rays" (Über eine neue Art von Strahlen), was published 50 days later on 28 December 1895. On 5 January 1896, an Austrian newspaper reported Röntgen's discovery of a new type of radiation. Röntgen was awarded an honorary Doctor of Medicine degree from the University of Würzburg after his discovery. He published a total of 3 papers on X-rays between 1895 and 1897. Today, Röntgen is considered the father of diagnostic radiology, the medical specialty which uses imaging to diagnose disease.
When was the X-ray machine invented?
According to Wikipedia as displayed on Answers.com, x-ray machines were first displayed and used in public in 1895 and 1896. You can read a complete history and overview at http://www.answers.com/topic/x-ray-machine-2.
What medical inventions and procedures are directly attributable to the invention of the x-ray?
all radiology procedures are attribituable to to invention of the xray1-all general xrays,chest,extremities,spine,etc2-IVPs,voiding cystograms,mylelograms, all special prodedures3-tomography, which helped the invention of CT then came the MRI4-All MRI, that is No radiation,a magnet, but was invented using same principles of CT5-mammography6-all operating room radiography Carms7-all portable radiography8-bone density that uses little radiation9-dental radiography10-nuclear medicine all, including spect scanningThe list goes on RT 45 yearsDiscovery of x-raysHand mit Ringen: print of Wilhelm Röntgen's first "medical" x-ray, of his wife's hand, taken on 22 December 1895 and presented to Professor Ludwig Zehnder of the Physik Institut, University of Freiburg, on 1 January 1896[4][5] An X-ray picture (radiograph) taken by Röntgen of Albert von Kölliker's hand at a public lecture on 23 January 1896[6]During 1895 Röntgen was investigating the external effects from the various types of vacuum tube equipment-apparatus from Heinrich Hertz, Johann Hittorf, William Crookes, Nikola Tesla and Philipp von Lenard-when an electrical discharge is passed through them.[7] In early November he was repeating an experiment with one of Lenard's tubes in which a thin aluminum window had been added to permit the cathode rays to exit the tube but a cardboard covering was added to protect the aluminum from damage by the strong electrostatic field that is necessary to produce the cathode rays. He knew the cardboard covering prevented light from escaping, yet Röntgen observed that the invisible cathode rays caused a fluorescent effect on a small cardboard screen painted with barium platinocyanide when it was placed close to the aluminum window. It occurred to Röntgen that the Hittorf-Crookes tube, which had a much thicker glass wall than the Lenard tube, might also cause this fluorescent effect.In the late afternoon of 8 November 1895, Röntgen determined to test his idea. He carefully constructed a black cardboard covering similar to the one he had used on the Lenard tube. He covered the Hittorf-Crookes tube with the cardboard and attached electrodes to a Ruhmkorff coil to generate an electrostatic charge. Before setting up the barium platinocyanide screen to test his idea, Röntgen darkened the room to test the opacity of his cardboard cover. As he passed the Ruhmkorff coil charge through the tube, he determined that the cover was light-tight and turned to prepare the next step of the experiment. It was at this point that Röntgen noticed a faint shimmering from a bench a meter away from the tube. To be sure, he tried several more discharges and saw the same shimmering each time. Striking a match, he discovered the shimmering had come from the location of the barium platinocyanide screen he had been intending to use next.Röntgen speculated that a new kind of ray might be responsible. 8 November was a Friday, so he took advantage of the weekend to repeat his experiments and make his first notes. In the following weeks he ate and slept in his laboratory as he investigated many properties of the new rays he temporarily termed X-rays, using the mathematical designation for something unknown. Although the new rays would eventually come to bear his name in many languages where they became known as Röntgen Rays, he always preferred the term X-rays. Nearly two weeks after his discovery, he took the very first picture using x-rays of his wife's hand, Anna Bertha. When she saw her skeleton she exclaimed "I have seen my death!"The idea that Röntgen happened to notice the barium platinocyanide screen misrepresents his investigative powers; he had planned to use the screen in the next step of his experiment and would therefore have made the discovery a few moments later.At one point while he was investigating the ability of various materials to stop the rays, Röntgen brought a small piece of lead into position while a discharge was occurring. Röntgen thus saw the first radiographic image, his own flickering ghostly skeleton on the barium platinocyanide screen. He later reported that it was at this point that he determined to continue his experiments in secrecy, because he feared for his professional reputation if his observations were in error.Röntgen's original paper, "On A New Kind Of Rays" (Über eine neue Art von Strahlen), was published 50 days later on 28 December 1895. On 5 January 1896, an Austrian newspaper reported Röntgen's discovery of a new type of radiation. Röntgen was awarded an honorary Doctor of Medicine degree from the University of Würzburg after his discovery. He published a total of 3 papers on X-rays between 1895 and 1897. Today, Röntgen is considered the father of diagnostic radiology, the medical specialty which uses imaging to diagnose disease.
The parts and function of electron microscope?
eyepiece body tube coarese adjustment fine adjustment revolving nose piece objective arm stage clip stage inclination joint base mirror diagraph
How were the protons discovered?
The atomic nucleus was discovered by Ernest Rutherford in 1911. In 1913, it was proven that the charge of the nucleus was equal to its atomic number. In 1919, Rutherford proved that the nuclei of all atoms contained particles described as hydrogen nuclei, and this is considered the discovery of the proton.
