How did they discover superglue works to increase fingerprint visibility?
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The first Japanese latent print examiner to use cyanoacrylate fuming to intentionally develop fingerprints was Masato Soba at the Saga Prefectural Crime Laboratory of the National Police Agency of Japan.  Mr. Soba learned of the development of superglue fingerprints from co-worker Fuseo Matsumura... a hair and fiber expert who discovered his own fingerprints developing on microscope slides while mounting hairs with cyanoacrylate. The hairs were from a case involving a murdered taxi cab driver.
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These are tag (which sometime take the form of badges, or paper stickers, or key chain fobs) that can be identified from a distance. Sometimes the distance is a few inches and sometimes it is a few feet. \n\nThere are a few technologies in use depending on the application. Some are passive -- a radio transmitter watches to see energy is absorbed by the tag. Some actually pick up power and radiate a digital code. The articles below should help.
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i have found superglue is disolvable by using acetone\n  or in other words nail varnish remover,also works where someone has superglued your locks, check it wont stain your jeans first though, hope this helps\njust soak the glue thoroughly and rob as you soak.
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The ridges increases your surface area of your fingers. It helps you to grip small items without crushing them. Geckos have a lot more ridges than we do, and they can vertically climb up windows!\n\nNotice how your left and right fingerprints are almost mirror images to each other? Cool!
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APC Biometric Fingerprint Scanner is a great password managing tool and its easy to install and enroll your fingers.  On Ebay you can search fro APC Fingerprint Scanner and see what you get.  Best Buy and Circuit City have them in the section where USB products are located.  You should be able to get one for $60.00 or less.  I have three of them.
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The "Eureka" legend of Archimedes (287-212 BC) can be considered an early account of the use of forensic science. In this case, by examining the principles of water displacement, Archimedes was able to prove that a crown was not made of gold (as it was fraudulently claimed) by its density and buoyancy.\n\nThe earliest account of fingerprint use to establish identity was during the 7th century. According to Soleiman, an Arabic merchant, a debtor's fingerprints were affixed to a bill, which would then be given to the lender. This bill was legally recognized as proof of the validity of the debt.\n\nThe first written account of using medicine and entomology to solve (separate) criminal cases is attributed to the book Xi Yuan Ji Lu (洗冤集錄, translated as "Collected Cases of Injustice Rectified"), written in 1248 China by Song Ci (宋慈, 1186-1249). In one of the accounts, the case of a person murdered with a sickle was solved by a death investigator who instructed everyone to bring their sickles to one location. Flies, attracted by the smell of blood, eventually gathered on a single sickle. In light of this, the murderer confessed. The book also offered advice on how to distinguish between a drowning (water in the lungs) and strangulation (broken neck cartilage).\n\nIn sixteenth century Europe, medical practitioners in army and university settings began to gather information on cause and manner of death. Ambroise Paré, a French army surgeon, systematically studied the effects of violent death on internal organs. Two Italian surgeons, Fortunato Fidelis and Paolo Zacchia, laid the foundation of modern pathology by studying changes which occurred in the structure of the body as the result of disease. In the late 1700s, writings on these topics began to appear. These included: "A Treatise on Forensic Medicine and Public Health" by the French physician Fodéré, and "The Complete System of Police Medicine" by the German medical expert Johann Peter Franck.\n\nIn 1775, Swedish chemist Carl Wilhelm Scheele devised a way of detecting arsenous oxide, simple arsenic, in corpses, although only in large quantities. This investigation was expanded, in 1806, by German chemist Valentin Ross, who learned to detect the poison in the walls of a victim's stomach, and by English chemist James Marsh, who used chemical processes to confirm arsenic as the cause of death in an 1836 murder trial.\n\nTwo early examples of English forensic science in individual legal proceedings demonstrate the increasing use of logic and procedure in criminal investigations. In 1784, in Lancaster, England, John Toms was tried and convicted for murdering Edward Culshaw with a pistol. When the dead body of Culshaw was examined, a pistol wad (crushed paper used to secure powder and balls in the muzzle) found in his head wound matched perfectly with a torn newspaper found in Toms' pocket. In Warwick, England, in 1816, a farm laborer was tried and convicted of the murder of a young maidservant. She had been drowned in a shallow pool and bore the marks of violent assault. The police found footprints and an impression from corduroy cloth with a sewn patch in the damp earth near the pool. There were also scattered grains of wheat and chaff. The breeches of a farm laborer who had been threshing wheat nearby were examined and corresponded exactly to the impression in the earth near the pool.
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The fingerprint can't appear in the scar!\n\nWhat a Jerry Springer question.
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guitar players sometimes rub off a fingerprint.try rubbing fingerprints off with a mild sandpaper.
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In the past I have used super glue remover. Seems to work for me.
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Micro electronics that you could see through. Nanobot technology. Using the contact lens as a focus lens. Tapping into the human body's natural electricity as a power source. Possible in a few years. \n\nIf the contact was a colored contact you couldn't see through, highly possible now.
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In the forensics field, the fingerprint is used to determine a person's identity. When they have a sample, they or the computer selects atleast 10-14 different points of reference (dots, bifurcations, islands, terminations, etc) and they compare them to the sample in question. If youre speaking in terms of practical use, the human finger is capable of sensing a difference of about 1000th of an inch. (When running it along a "smooth" surface). And I would have to agree that it does give the finger some grip. Almost like a tire. When we grip something wet, the grooves move the liquid away so you can grip it better. Id have to agree.
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There is not software.  There is hardware in development that utilizes a form of radar that allows airport screeners to "see" under a person's clothing.\n\nThe system is so detailed that they currently have not yet deployed the system due to the ability to see "everything" and there is a fear of reprisial from the public with screeners viewing the "privates".
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Biometrics\n\nBiometric-based identification systems and displays are used through out the world for identification, security and entertainment. As new improvements and engineering discoveries emerge there is and equal increase in the demand for these products. Everything from fingerprint recognition, iris/retina scanning, virtual retinal display [VRD] to facial recognition these are all in high demand in both private and commercial markets. Exploring the world around us there are needs (security) that must be met and biometric equipment are there to meet them.\n\nBiometric is the process of automatically recognizing a person using distinguishing traits.3 Biometric technology has come a long way from simpler forms of systems security. But are biometrics-based systems more secure or do they simply require crackers to become more proficient at breaking into systems?2 As of right now we have passwords, pin numbers and signatures keeping our money, homes and jobs safe, and these forms of security are cheap and affective. But as industries grow, countries industrialize and people evolve there will always be a need for more security not necessarily better. Biometrics will most likely be better but expensive for the time being and this is the next step. Not to say that what we consider secure not secure but this is where it seems to be heading in the form of global security. For security purposes the private and government can both benefit from the outstanding discoveries in biometrics. Hand scanning is one of the grandfathers of biometric security. Still affective and in use it is cheap and able to be integrated anywhere. The geometric form of the hand is used to confirm a person's identity. The hand is not unique but specific characteristics of the hand such as the dimensions are. For a hand-scan to recognize a hand it must be placed on a reader's covered flat surface. This placement is positioned by five guides or pins that correctly situate the hand for the cameras.1 The technology uses a 32,000-pixel CCD digital camera to record the hands three- dimensional shape from silhouetted images projected within the scanner.1 Fingerprints are in the same generation as hand scanning and will confirm who the user is and accurately identifies a user in a 1:N (one to many) identification that is compared with many numerous records.1 This is a fast and reliable tool and are now being used as security features on home personal computers. These technologies are time tested and widely accepted by the public and the scans are none threatening and have a low False Reject Rate1 which allows fast and easy access to whatever and wherever this security feature is implemented.\n\nFacial recognition is an old idea but has been rejuvenated by the "eigenfaces" technique.4 The new research is done in neural networks, hidden Markov models and shape analysis. Eigenfaces technique is the identification of a human face in real time.\n\nSo, as a person is moving the cameras can track a face and identify it as it moves. This is a great advancement because this will allow law enforcement agencies to quickly sift through crowds of people and search for terrorists and anyone who is recognized as a potential threat. This is done by collecting data on the face in 2-D and then processing it through eigenfaces which are the principal components of the initial training set of face images. Recognition is performed by projecting a new image into the subspace spanned by the eigenfaces ("face space") and then classifying the face by comparing its position in face space with the positions of known individuals.4 This is the basic version trying to get a face to be processed, saved then recognized. Face recognition is incredibly difficult do to movement, distance and then trying to acquire enough accurate detail to recognize the face but with the forward motion of our technological discoveries the technology will become more abundant over time.\n\nI
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Reverse engineering of alien technology. Where the heck do you think velcro actually came from??? Vulcan???
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This was an experimemt the US Navy conducted.  They attempted to "Cloak" a destroyer using magnetism.  How successful it was I am not sure.  There are several myths surrounding the experiment which depict gross outcomes of the experiment.
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Fingerprints are detected by the oils left behind-washing them in soapy water would remove them-alcohol will also do the trick.
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As would be expected fingerprints have been around as long as man has, and thus the first human to look at their hands would have discovered fingerprints. I assume that in this question you are asking who realised that they could be used as a method of identification. This has been known for thousands of years, in fact in early civilisation the distinctive fingerprint of a person could be found on pottery created by that person as way of a hall mark.\nNehemiah Graw (1641-1712) was one of the first people to study the distinct ridges of the fingerprints, and the science of their study developed through such people as Marcello Malpighi and Thomas Bedwick. The first person to realise that fingerprints were so distinctive they could be used fairly accuratly as a means of identification was Sir William Herschel (1833-1917), but it was Dr Juan Vucetich who started up the worlds first fingerprint buereu in argentina, and this became the first country in 1896 to abolish athropometry as a means of identification, in favour of fingerprints.