In November 1895, the German physicist Wilhelm Conrad Röntgen discovered a "mysterious ray" that had the power to produce an image after passing through flesh, clothing, wood or metal and he baptized with the unknown "X". Since then the X-ray applications have multiplied. In addition to growing interest for medical diagnosis, this technology is used to control security at airports study the quality of cured ham or find the "missing matter in the universe." And even some have found a way to use X-rays for artistic purposes. Naked clothing. airport in Manchester, England, has launched an X-ray scanners for passenger screening that can detect weapons, drugs or explosives at a glance. The aim is to improve security systems at airports. The device is not without controversy, as its use could be considered a violation of the right to privacy.
Genetics in action. Using X-ray crystallography, scientists from the University of Pennsylvania (USA) obtained a few months ago the first picture of the genetic processes that occur within each body cell.
X-ray telescopes Using two X-ray telescopes, the Chandra Observatory (NASA) and XMM-Newton (ESA), a team of astronomers has managed to find a huge intergalactic gas reserves located about 400 million light years from Earth, in what could be the "missing matter" of the universe that scientists have been looking for.
De pata negra. Computed tomography (CT) scanner normally called, is a medical diagnostic procedure that uses X-ray technology assisted by a computer to create multiple cross-sectional images of the body, by way of "slices", which together provide a complete picture 3D. Besides its medical importance, this technology is also used to visualize the process of salting a piece of ham, and to analyze the proportion of meat and fat.
Caring for the environment. X-ray spectroscopy have been used is what engineers and chemists at the University of Delaware, United States to develop a technique that measures in just a few milliseconds contamination in soil and water.
Wear your helmet. The Royal Air Force has developed a helmet that incorporates sophisticated X-rays and allows pilots to see through the walls of the aircraft. The device also incorporates anti-noise device and assists the pilot in navigation.
Fossils in amber. The European synchrotron facilities in Grenoble (France), paleontologists are using X-rays emitted by a particle accelerator to study pieces of amber English deposits from insects and spiders trapped inside for more than 100 million years. The technique allows them to view the content analysis of their digestive tracts and what to eat before getting caught, to study how their brains and see if flying without damaging the fossil.
Archimedes recovered. In 2006, researchers at Stanford University used a technique called X-ray fluorescence (XRF for its acronym in English) to expose a series of texts by the Greek mathematician and physicist Archimedes, one of the best minds of antiquity, that had been hidden under a series of images and texts for centuries.
tape "X". In 2008, the Laboratory of Acoustics and Low Temperature Physics Department, University of California at Los Angeles (UCLA), Juan Valentín Escobar and his colleagues discovered that when a roll of adhesive tape that we handle daily off-load is the amount of X-rays are produced in 10 seconds is enough to get the x-ray of a human finger. The finding could lead to a more economical method to produce X-rays
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