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De-mining (the detection of landmines), the detection of weapons such as knives and guns (particularly in airport security), geophysical prospecting, archaeology, and treasure hunting are just some of the applications. Metal detectors are also used to detect foreign bodies in food, as well as steel reinforcement bars in concrete and pipes.
Word art is a form of expression that can transform a room into a more personal and meaningful space. Top designers share how to keep it fresh and modern.
Alexander Murray and Richard Morse invented and patented the first analog color scanner at Eastman Kodak in 1937. Intended for color separation at printing presses, their machine was an analog drum scanner that imaged a color transparency mounted in the drum, with a light source placed underneath the film, and three photocells with red, green, and blue color filters reading each spot on the ...
A magnetic anomaly detector (MAD) is an instrument used to detect minute variations in the Earth's magnetic field. [1] The term typically refers to magnetometers used by military forces to detect submarines (a mass of ferromagnetic material creates a detectable disturbance in the magnetic field ).
According to ghost hunters these are helpful in detecting and visualizing temperature changes during an investigation. SLS or Kinect camera This is a device that uses a pattern of infrared dots to detect objects in complete darkness. Analyzed by Kenny Biddle [56] [57] and found prone to spurious results when used as a non-stationary device.
The same image viewed by white, blue, green, and red lights reveals different hidden numbers. Steganography (/ ˌ s t ɛ ɡ ə ˈ n ɒ ɡ r ə f i / ⓘ STEG-ə-NOG-rə-fee) is the practice of representing information within another message or physical object, in such a manner that the presence of the concealed information would not be evident to an unsuspecting person's examination.
An 1899 trade advertisement Mutoscope at Herne Bay Museum Mutoscope in San Francisco antique arcade Mutoscope: "Mechanical Maniacs" video.. The Mutoscope is an early motion picture device, invented by W. K. L. Dickson and Herman Casler [1] and granted U.S. patent 549309A to Herman Casler on November 5, 1895. [2]
Fish bone pierced in the upper esophagus. Right image without contrast medium, left image during swallowing with contrast medium. To obtain an image with any type of image detector the part of the patient to be X-rayed is placed between the X-ray source and the image receptor to produce a shadow of the internal structure of that particular part of the body.