definition of periscope
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Periscope A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position. In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45-degree angle. This form of periscope, with the addition of two simple lenses, served for observation purposes in the trenches during World War I. Military personnel also use periscopes in some gun turrets and in armoured vehicles.
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Definitions &Translations Endoscopy means looking inside and typically refers to looking inside the body for medical reasons using an endoscope, an instrument used to examine the interior of a hollow organ or cavity of the body. Unlike most other medical imaging techniques, endoscopes are inserted directly into the organ.
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ophthalmoscope an instrument for viewing the interior of the eye or examining the retina. This is the most simple and one of the most satisfactory methods of exploring the eye with the ophthalmoscope.
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- Star Constellation Facts. 1  A simple definition of a constellation is a group of stars which form a pattern in the night sky. 2  The official definition is an area of the sky with defined boundaries, all stars and any other objects within that boundary are considered part of the constellation.irst find the famous Big Dipper, which is part of the constellation Ursa Major and visible all year in the Northern hemisphere, draw an imaginary line through the outer two stars of the Big Dipper’s bowl and you will come to Polaris, which is the brightest star in the constellation of Ursa Minor.
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Endoscopy What Is It? Endoscopy describes many procedures that look inside the body using some type of endoscope, a flexible tube with a small TV camera and a light on one end and an eyepiece on the other. The endoscope allows doctors to examine the inside of certain tubelike structures in the body. Many endoscopes transmit the doctor's view to a video screen.
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Definitions &Translations Wiktionary(0.00 / 0 votes)Rate this definition: 1  kaleidoscope(Noun) A tube of mirrors containing loose coloured beads etc. that is rotated to produce a succession of symmetrical designs. 2  kaleidoscope(Noun) A constantly changing set of colours, or other things.
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Gyroscope A gyroscope is a device used primarily for navigation and measurement of angular velocity . Gyroscopes are available that can measure rotational velocity in 1, 2, or 3 directions. 3-axis gyroscopes are often implemented with a 3-axis accelerometer to provide a full 6 degree-of-freedom (DoF) motion tracking system.
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definitions - peristalsisreport a problem Peristalsis is a distinctive pattern of smooth muscle contractions  that propels food through the esophagus and intestines. radially symmetrical contraction and relaxation of … muscles which  propagates in a wave down a muscular tube, in an anterograde  fashion.
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periscope Definition of periscope for English Language Learners : a long tube that contains lenses and mirrors and that is used to look over or around something and especially by a person in a submarine to see above the surface of the water
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- 2. a: camera obscura b: a device that consists of a lightproof chamber with an aperture fitted with a lens and a shutter through which the image of an object is projected onto a surface for recording (as on film) or for translation into electrical impulses (as for television broadcast). — off camera. 1.
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Videoscope Components By Paul Fitzgerald. An industrial videoscope is a flexible inspection tool used to remotely inspect areas that are not otherwise visible. An industrial videoscope is typically used for visual or non-destructive testing.1  CCD or CMOS camera housed in the tip of the probe.MOS based videoscopes do not offer the color and brilliant image reproduction found on more expensive CCD videoscopes. Tip articulation is achieved by manipulating up/down and right/left mechanical controls or an electronically controlled joystick.
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Standard Automated Perimetry Perimetric Parameters[edit | edit source] Perimetry refers to the systematic measurement of the visual field, and is an essential component of defining the extent and progression of glaucoma, as well as numerous other eye conditions.
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- Other endangered animals in Mexico include the MANTLED HOWLER MONKEY, the COAHUILAN BOX TURTLE (endemic to the region of Cuatrocienegas, Coahuila), the HARPY EAGLE, and the SHORT-CRESTED COQUETTE, a type of hummingbird only known to be found along one road (!) in the Mexican state of Guerrero.
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- The definition of perky is someone who is cheerful, peppy and self-confident. A smiling, happy cheerleader with lots of energy is an example of someone who might be described as perky.
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Laparoscopy (Pelvic Endoscopy, Peritoneoscopy) Laparoscopy (Pelvic Endoscopy, Peritoneoscopy) In laparoscopy, a rigid viewing tube (called a laparoscope) is inserted through a small incision in the abdomen, just below the navel. Fiberoptic cables permit a doctor to visually inspect the abdominal and pelvic organs for abnormalities.
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- : an illuminated usually fiber-optic flexible or rigid tubular instrument for visualizing the interior of a hollow organ or part (as the bladder or esophagus) for diagnostic or therapeutic purposes that typically has one or more channels to enable passage of instruments (as forceps or scissors).
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- A gyroscope (from Greek γῦρος guros, gûros circle and σκοπέω, skopeō skopéō) to look is a spinning wheel or disc in which the axis of rotation is free to assume. any orientationn the 1860s, the advent of electric motors made it possible for a gyroscope to spin indefinitely; this led to the first prototype heading indicators, and a rather more complicated device, the gyrocompass. The first functional gyrocompass was patented in 1904 by German inventor Hermann Anschuetz-Anschütz. kaempfe
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kaleidoscopenoun kaleidoscope noun uk / kəˈlaɪ.də.skəʊp / us / kəˈlaɪ.də.skoʊp / › [C] a toy in the shape of a tube, that you look through to see different patterns of light made by pieces of coloured glass and mirrors
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Definition of 'overhead projector' Definition of 'overhead projector'. overhead projector. An overhead projector is a machine that has a light inside it and makes the writing or pictures on a sheet of plastic appear on a screen or wall. The abbreviation OHP is also used. COBUILD Advanced English Dictionary.
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How Photonics Masts Will Work Of course, modern submarine periscopes are more sophisticated than that. Periscopes on submarines may be as long as 60 feet (18 m). When a submarine is submerged to a depth that is equal to the length of the periscope tube, it is considered to be at periscope depth.
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Explainer: What is Periscope? Twitter integration: As Periscope is now owned by Twitter, it’s no surprise that the app is well integrated with Twitter. It allows you to connect easily with your Twitter followers and to notify Twitter followers of your Periscope broadcasts.sing Periscope. To stream video, hit the camera button, write a description and “Start broadcast”. To use Periscope to share live videos you need to download the app to your smartphone or tablet. You then create an account with your Twitter details or by using your mobile phone number.
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otoscope otoscope. [ 1 ō′təskōp′] 2  an instrument used to examine the external ear, the eardrum, and, through the eardrum, the ossicles of the middle ear. It consists of a light, a magnifying lens, a speculum, and sometimes a device for insufflation. Otoscope.
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Endoscopy For the notion in mathematics introduced by Langlands, see Endoscopic group. A physician training to use an endoscope. Endoscopy means looking inside and typically refers to looking inside the body for medical reasons using an endoscope, an instrument used to examine the interior of a hollow organ or cavity of the body.n Endoscopy is a simple procedure which allows a doctor to look inside human bodies using an instrument called an endoscope. A cutting tool can be attached to the end of the endoscope, and the apparatus can then be used to perform surgery.
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Gyroscope The rotor will maintain its spin axis direction regardless of the orientation of the outer frame. A gyroscope (from Greek γῦρος gûros, circle and σκοπέω skopéō, to look) is a spinning wheel or disc in which the axis of rotation is free to assume any orientation by itself.
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ophthalmoscope ophthalmoscope in Medicine. ophthalmoscope oph·thal·mo·scope (ŏf-thāl'mə-skōp', ŏp-) n. An instrument for examining the interior structures of the eye, especially the retina, consisting essentially of a mirror that reflects light into the eye and a central hole through which the eye is examined.
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- Periscope is a fiercely independent impact agency with offices in Minneapolis, Toronto, Hong Kong and Delhi. We use the power of creativity to help brands build enduring love and loyalty.