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Iris scanner in action to identify people. A biometric device is a security identification and authentication device. Such devices use automated methods of verifying or recognising the identity of a living person based on a physiological or behavioral characteristic.
In addition to his patent for the first working laser, Maiman authored a number of patents on masers, lasers, laser displays, optical scanning, and modulation. [ 34 ] Prior to his death, Maiman held an adjunct professor position in the School of Engineering Science at Simon Fraser University , where he worked on the development of curricula in ...
A laser is a device that emits light through a process ... [23] refer to the word laser as an anacronym, meaning an ... which identifies how dangerous the laser is: ...
Since a laser beam has low divergence, the laser light appears as a small spot even at long distances; the user places the spot on the desired target and the barrel of the gun is aligned (but not necessarily allowing for bullet drop, windage, distance between the direction of the beam and the axis of the barrel, and the target mobility while ...
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A laser designator is a laser light source which is used to designate a target. Laser designators provide targeting for laser-guided bombs , missiles , or precision artillery munitions, such as the Paveway series of bombs, AGM-114 Hellfire , or the M712 Copperhead round, respectively.
Police in Spain said on November 21 they had used open-source investigative techniques to geolocate footage posted on social media showing a driver shining a laser beam at a trucker and that the ...
Well, largely because almost everyone opens a text—98%, compared to 20% for marketing emails—and about 45% of people will respond, compared to 6% for emails. The numbers vary slightly ...