Search results
Results from the WOW.Com Content Network
Unprotected experiments in the U.S. in 1896 with an early X-ray tube (Crookes tube), when the dangers of radiation were largely unknown.[1]The history of radiation protection begins at the turn of the 19th and 20th centuries with the realization that ionizing radiation from natural and artificial sources can have harmful effects on living organisms.
In 1940, the New York Times gave a range for the ray of 250 miles (400 km), with an expected development cost of US$2 million (equivalent to $44.89 million in 2024). [224] Tesla described it as a defensive weapon that would be put up along the border of a country and be used against attacking ground-based infantry or aircraft.
On 11 January 1896 he made the first use of X-rays under clinical conditions when he radiographed the hand of an associate, revealing a sterilised needle beneath the surface. [4] A month later on 14 February he took the first radiograph to direct a surgical operation. He also took the first X-ray of the human spine.
On the late Friday evening of 8. November 1895, Röntgen discovered for the first time the rays which penetrate through solid materials and gave them the name X-rays.He presented this in a lecture and publication On a new type of rays - Über eine neue Art von Strahlen on 23 January 1896 at the Physical Medical Society of Würzburg.
On January 27, 1896, Wright produced an X-ray photograph, barely a month after Wilhelm Röntgen's seminal paper On A New Kind Of Rays was published on December 28, 1895. This was the first X-ray image produced in the country. [9] He contributed numerous scientific papers, chiefly on astronomical and electrical subjects, to various publications.
Wolfram Conrad Fuchs (1865–1908) was a German-born electrical engineer who became a pioneer in radiography.He opened the first x-ray laboratory in the United States in Chicago, and had completed over 1400 x-ray examinations by 1896.
It was there that Grubbe assembled the first x-ray machine in Chicago in 1896, and that same year, used it to treat a woman with recurrent carcinoma of the breast (disputed). [5] He assembled the machine and began to use it in treatments less than a year after Wilhelm Röntgen announced his discovery of the x-ray. [ 6 ]
Researchers had already discovered that X-rays could kill bacteria by 1896. The predominant theory at the time was that cancer was some kind of parasitic infection. Louis Charles Émile Lortet and Philibert Jean Victor Genoud tried to kill tuberculosis in infected guinea pigs using X-rays from March to June 1896 in the same city of Lyon. [7] [3]