| Manu | Date: Wednesday, 26-October-2011, 9:14 PM | Message # 1 |
--dragon lord--
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| X-ray vision is possible for Superman, but in the real world, it’s a lot harder to do. However, a couple of guys at the Massachusetts Institute of Technology have found a way to duplicate –- sort of -– Superman’s amazing feats.
Two researchers at MIT’s Lincoln Lab, John Peabody and Gregory Charvat, think they have a way around that, and it involves a system of signal amplifiers and radio wavelengths. The results could lead to a new kind of radar that offers real X-ray vision to soldiers in urban combat zones.
To see through walls, you have to deal with the fact that solid objects absorb, scatter or reflect light and radio waves. This is why X-ray machines and radar work the way they do. When a doctor takes an X-ray image, the solid bone (and any metal you are carrying) shows up as bright white because other body parts, which are mostly water, allow X rays to pass through them, whereas bones and metal don’t. Radar works by picking up reflected radio waves from (mostly) metal objects. A radar operator can “see” a plane from miles away because of the radio waves bouncing off it.
If one uses an X-ray machine to take an image of an object behind a wall, the wall shows up very brightly. Only a small bit of the radiation penetrates the wall, and an even smaller bit reflects back to the detector.
Full article/source - http://news.discovery.com/tech....19.html
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