with the invention of the stroboscope in 1832, when he used a disc with radial slits which he turned ... , which he named the Stroboscope , and it is his term which is used today. The etymology is from ... stroboscope was invented in 1931, when Harold Eugene Edgerton Doc Edgerton employed a flashing lamp ... dysphonia hoarseness . The patient hums or speaks into a microphone which in turn activates the stroboscope ... by endoscope endoscopy . Another application of the stroboscope can be seen on many phonograph ... Strobe tuner Tachometer Thaumatrope Zoetrope References references External links Wiktionarypar stroboscope ... and Stroboscope at North Carolina School of Science and Mathematics Category measuring instruments ... fa fr Stroboscope hi it Stroboscopio lt Stroboskopas hu Stroboszk phat s nl ... more details
Stroboscopic may refer to Stroboscopic effect , visual temporal aliasing Stroboscope , any of various stroboscopic devices Strobe light , high intensity and short duration stroboscopic device disambig ... more details
Unreferenced date July 2009 A viewing instrument is a device used for viewing or examining an object or scene, or some electrical property or signal. In some cases the thing viewed is mathematical. The names of many viewing instruments is derived from the English language English suffix scope , meaning see , which derives from the scientific Latin suffix scopium , meaning a viewing instrument, which in turn originates from the ancient Greek language Greek verb skopein , meaning to examine . Glossary of types of viewing instrument binoculars Cinemascope cystoscope electroscope electrotachyscope endoscope fibrescope finderscope fluoroscope Galvanometer galvanoscope gastroscope gonioscope iconoscope kaleidoscope kinescope kinetoscope laryngoscope microscope oscilloscope Otoscope periscope phenakistoscope also phenakistiscope praxinoscope Rotoscope spectroscope stethoscope stereoscope stroboscope tachistoscope telescope teleidoscope viewfinder See also wiktionary scope Optical instrument DEFAULTSORT Scope Category Greek suffixes Scope de skop ... more details
The Merrill Wheel Balancing System was the world s first electronic dynamic wheel balancing system. It was invented in 1945 by Marcellus Merrill at the Merrill Engineering Laboratories, 2390 South Tejon Street, Englewood, Colorado , and is now recorded on the list of IEEE Milestones in electronic engineering and as an American Society of Mechanical Engineers landmark. Before Merrill s invention, all wheel balancing for automobiles, trucks, etc., required removal of the wheel from the vehicle. Most required some form of static balancing without wheel rotation, which was slow and error prone. Merrill s invention balanced wheels while still mounted to the vehicle, by spinning them at high speed and electronically analyzing the vibrations to trigger a stroboscope . Technicians could then determine where balancing weights should be added. References http www.ieee.org web aboutus history center merrill.html IEEE History Center http www.asme.org Communities History Landmarks Merrill Wheel Balancing.cfm ASME Landmarks Category History of engineering ... more details
for the United States Copyright Office United States Copyright Office USCO was a media art artist collective collective in the 60s and 70s, founded by Michael Callahan and Gerd Stern , who also founded Intermedia Systems Corporation which produced multimedia art internationally. Influenced by media theorist Marshall McLuhan , they were using stroboscope s, projectors and audiotapes in their performances. Eventually they moved into an old church in Garnerville , Rockland County , NY. To underline the community character of the project, USCO used the phrase We are all one . The abbreviation USCO stands for The Company of Us . Among its members were the painter Stephen Durkee and the video artist Jud Yalkut . Stewart Brand , although not a formal member of the group, held close relations to USCO. References Gerd Stern, http content.cdlib.org xtf view?docId kt409nb28g&brand oac&doc.view entire text From Beat Scene Poet to Psychedelic Multimedia Artist in San Francisco and Beyond, 1948 1978 , an oral history conducted in 1996 by Victoria Morris Byerly, Regional Oral History Office, The Bancroft Library , University of California, Berkeley, 2001. Retrieved on August 15, 2008. Douglas Davis, Art and the Future A History Prophecy of the Collaboration Between Science, Technology and Art. New York. Praeger, 1973 Category American artist groups and collectives Art org stub ... more details
Infobox Album See Wikipedia WikiProject Albums Name Not Completely Clean Type studio Artist Frogcircus Cover Frogcircus Not Completely Clean.jpg Released 1 July 2008 Recorded 2006 Genre Indie rock Indie Length 46 00 Label BlackRock Records Producer J rgen Block & Frogcircus Last album Allergic album Allergic br 2005 This album Not Completely Clean br 2008 Next album Not Completely Clean is the fourth album by Spain Spanish Germany German rock band Frogcircus . It was released on the German label BlackRock Records in 2008. The album was recorded during 12 days in August 2006 at TB Sound Studio in Treuenbrietzen Germany by J rgen Block, who is also credited as co producer. Track listing What s The Voltage William? Follow You Around If You Only No Better Frames Of The Past Peaches Stitch The Memories Sometimes Off The Tide Into The Sea Time Stroboscope 1976 Scent Berlin All songs written by Stone, except 6 & 11 written by Timo G nzel. Personnel Stone vocals, guitar br Timo G nzel bass br Tobi Fr hlich drums br Category 2008 albums Category Frogcircus albums ... more details
File ActionShot Bike01.jpg right upright 1.5 thumb alt Synthetic photograph with several appearances of a guy riding a bicycle on a bicycle ground ActionShot photograph of a bicycle rider. File AS ski.jpg right upright 1.5 thumb alt Synthetic photograph with several appearances of snowboarder gliding over a snow covered valley ActionShot photograph of a snowboarder. ActionShot is a method of capturing an object in action and displaying it in a single image with multiple sequential appearances of the object. Additional names action synopsis, motion synopsis, panoramic video synopsis, dynamic still, synopsis mosaic, stromotion. Background There are many methods for capturing panoramic images , some being fully manual or semi automatic, and others completely automatic. However, the majority of these methods are for creating panoramic photos of a static landscape. In contrast, the capture of a dynamic scene i.e. recording the motion of a moving object is typically done by video recording. ActionShot is a method that combines elements of both panoramic and video photography to create panoramic photos of dynamic scenes that take place over a wide angle area. This involves capturing a moving object e.g. a person running, riding a bicycle or skiing and depicting multiple instances of this object over a single panoramic background. Methods Hardware Stroboscope s have been used to create static images of an action. The moving object is illuminated by the periodic light flashes generated by the stroboscope and is shot by a stills camera using a long exposure. This results in a photograph that displays multiple images of the object along its path. Manual image editing To create a dynamic panoramic image manually, a photographer needs to take several shots of a moving object and then combine them together using manual image registration , followed by manual image stitching . Image editing programs can assist in this process ref Kaan Kiran , Composing an Action Sequence Shot. DIY ... more details
Max Joseph Oertel March 20, 1835 July 17, 1897 was a significant Germany German physician who was a native of Dillingen . He practiced medicine in Munich , where he became a professor extraordinary in 1876. He is credited with being the first physician to use a laryngeal stroboscope for examination of the larynx . He combined a stroboscopic lamp with a laryngeal mirror in order to study vocal movements in different registers. Application of the strobe light allowed him to view the vibrating vocal cord s in slow motion, thus enabling detailed views of the larynx in an open or closed position. Oertel also created several written works regarding cardiac, circulatory and obesity disorders, and was an early advocate of the terrain cure , which is a set of therapeutic exercises that involve graduated hiking and climbing. Oertel made contributions in regards to the study of diphtheria by reproducing the disease in laboratory rabbits. However, he was unable to locate the aetiology of the disease. In 1883 the causative microbe Corynebacterium diphtheriae was discovered by Dr. Edwin Klebs 1834 1913 . References http www.emedicine.com ent topic606.htm eMedicine Stroboscopy in Medicine http fmtest.iowa.uiowa.edu fmi xsl hardin heirs record detail.xsl? db heirs& lay weblayout&ID2 2037& find Heirs of Hippocrates Univ. of Iowa Library Persondata Metadata see Wikipedia Persondata . NAME Oertel, Max Joseph ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH March 20, 1835 PLACE OF BIRTH DATE OF DEATH July 17, 1897 PLACE OF DEATH DEFAULTSORT Oertel, Max Joseph Category 1835 births Category 1897 deaths Category German physicians Category University of Munich faculty germany med bio stub de Max Oertel sv Max Oertel ... more details
Unreferenced stub auto yes date December 2009 image timinglight.jpg thumb right 300px Timing light A timing light is a stroboscope used to dynamically set the ignition timing of an Otto cycle or similar internal combustion engine . The timing light is connected to the ignition circuit and used to illuminate the timing mark s with the engine running. The apparent position of the marks, frozen by the stroboscopic effect , indicates the current timing of the spark in relation to piston position. On most automotive engines, the timing is set based on the 1 cylinder. In few cases an engine is timed off of another cylinder, such as the International Harvester V8 gas engines, which use 8, and the Isuzu 4Z series 4 Cylinder, which is timed off the 4 cylinder. A timing light may be a self contained instrument, but is sometimes combined with a voltmeter , Revolutions per minute RPM meter, and a dwell angle meter, or may be incorporated into a more comprehensive instrument such as an engine analyser . Self contained units used to time automotive engines have an Electromagnetic induction inductive pickup that clamps around the proper spark plug wire and serves as the trigger for the strobe. Power for the strobe comes directly from the vehicle s battery. Some older timing lights require the removal of the spark plug boot in order to attach a direct pickup between the wire s terminal and the center conductor of the spark plug. See also Firing order DEFAULTSORT Timing Light Category Engine tuning instruments Tech stub ... more details
context date May 2010 An optical chopper is a mechanical device which periodically interrupts a light beam. Three types are available variable frequency rotating disc choppers, fixed frequency tuning fork choppers, and optical shutters. A rotating disc chopper was famously used in 1849 by Hippolyte Fizeau in the first non astronomical measurement of the speed of light . The chopper amplifier allows for either a physical quantity to be measured or on the electrical signal from the transducer. In general it is desirable to chop the signal as close to its source as possible because only the noise that arises after chopping is removed by the process. The rotation of the chopper produces a radiant signal that fluctuates periodically between zero and some maximum intensity. ref cite book author Douglas A Skoog title Principles of Instrumental Analysis isbn 0495125709 year 2007 publisher Brooks Cole location Pacific Grove, Calif. ref There are also electrical ways of generating pulsed light beams at a variable millisecond intervals. As an electrical alternative to the rotating disc, pulsed light is currently used to grow plants under intermittent artificial light generated using specially designed ballast systems for standard fluorescent light tubes. Because the light beam is interrupted before the light is generated, unlike devices which interrupt the light after it is generated, the electrically pulsed light tubes reduce the energy requirements of pulsed light applications by an amount equal to the percentage of pulsing, so a 50 flickered on off light stream is made with 50 less energy. Chopper Light systems are also suitable for UV applications. Late 20th century Mouse computing Mechanical mouse devices computer mice used two chopper wheels for encoding. See also Stroboscope References reflist Category Optical metrology tech stub Optics stub fa ... more details
General Radio Corporation later, GenRad was a broad line manufacturer of electronic test equipment . Started in Cambridge, Massachusetts in 1915, the company moved to Concord, Massachusetts West Concord in the 1950s. There, it became a major player in the automatic test equipment ATE business, manufacturing a line of testers for assembled printed circuit board s. It also produced extensive lines of electrical component measuring equipment, sound and vibration measurement and RLC circuit RLC standards. Primarily because of its line of ATE equipment, the company was eventually acquired by Teradyne in 2001 and has now been relocated to Teradyne s corporate campus in North Reading, Massachusetts North Reading , Massachusetts. In 1991, QuadTech, Inc. was founded as spinoff of GenRad s Instrumentation Division. Today, QuadTech is a leading provider of hipot testers, lcr meters, cable testers and testing automation software. The classic instrument line including RLC standards and decades, Digibridges, Ohmmeter megohmmeters , stroboscopes, and sound level meters was acquired by IET Labs and continues to be manufactured and supported in West Roxbury, MA. Among General Radio s accomplishments over the years have been The introduction of one of the world s first portable oscilloscope s The production of many high precision standards for Electrical resistance resistance and capacitance The commercial production of the stroboscope as the Strobotac The commercial production of the sound level meter Commercial invention of the binding post . Invention of the GR connector The Variac variable autotransformer External links http www.teradyne.com Teradyne, the current owner of the GenRad ATE business http www.ietlabs.com IET Labs, the current owner of the traditional GenRad instrument business http www.quadtech.com QuadTech Instruments, spinoff of GenRad Category Electronics companies of the United States ... more details
Merge Stroboscope date September 2010 Unreferenced date December 2009 Image Strobe 2.gif thumb right Depending on the frequency of flash, the element appears motionless or rotating in reverse direction The stroboscopic effect is a visual phenomenon caused by aliasing that occurs when continuous motion is represented by a series of short or instantaneous samples. It occurs when the view of a moving object is represented by a series of short samples as distinct from a continuous view, and the moving object is in rotational or other cyclic motion at a rate close to the sampling signal processing sampling rate . It also accounts for the wagon wheel effect , so called because in video or motion picture s, spoked wheels on horse drawn wagons sometimes appear to be turning backwards. A Strobe Fountain is an example of the stroboscopic effect being applied to a cyclic motion that is not rotational a stream of water droplets falling at regular intervals. When viewed under normal light, this is a normal water fountain. When viewed under a strobe light with its frequency tuned to the rate at which the droplets fall, the droplets appear to be suspended in mid air. Adjusting the strobe frequency can make the droplets seemingly move slowly up or down. Explanation Consider the stroboscope as used in mechanical analysis. This may be a strobe light that is fired at an adjustable rate. For example, an object is rotating at 60 revolutions per second if it is viewed with a series of short flashes at 60 times per second, each flash illuminates the object at the same position in its rotational cycle, so it appears that the object is stationary. Furthermore, at a frequency of 60 flashes per second, persistence of vision smooths out the sequence of flashes so that the perceived image is continuous. If the same rotating object is viewed at 61 flashes per second, each flash will illuminate it at a slightly earlier part of its rotational cycle. Sixty one flashes will occur before the object is seen ... more details
Refimprove date July 2009 The Fechner color effect is an illusion of color seen when looking at certain rapidly changing or moving black and white patterns. They are also called pattern induced flicker colors PIFCs . Not everyone sees the same colors. ref cite journal last Tritsch first M F coauthors Pfeiffer, N year 1994 title Increased threshold for detection of phase differences in pattern induced color flicker fusion in patients with glaucoma journal Klinische Monatsbl tter f r Augenheilkunde volume 205 issue 1 pages 27 32 url http www.biomedexperts.com Abstract.bme 7933905 Increased threshold for detection of phase differences in pattern induced color flicker fusion in patients with glaucom accessdate 28 July 2009 ref The effect is most commonly demonstrated with a device known as Benham s top . It can also be seen in stroboscope stroboscopic lights when flashes are set at certain critical speeds. Rotating fan blades, particularly aluminium ones, can also demonstrate the effect as the fan accelerates or decelerates, the colours appear, drift, change and disappear. The stable running speed of the fan does not normally produce colours, suggesting that it is not an interference effect with the frequency of the illumination flicker. The effect was noted by Gustav Fechner and Hermann von Helmholtz and propagated to English speakers through Charles Benham s invention of Benham s top his top . The perception perceptual mechanism of Fechner color is not entirely understood. When the disk is spun, arcs of pale color are visible at different places on the disk. One possible reason people see colors may be that the color receptors in the human eye respond at different rates to red, green, and blue. Or, more specifically, that the latencies of the centre and the surrounding mechanisms differ for the different types of color specific ganglion cells. The phenomenon originates from neural activity in the retina and spatial interactions in the primary visual cortex , which pro ... more details
Ian Sommerville 1940 1976 ref name Geiger John Geiger, Chapel of Extreme Experience , page 90. in 1976, ian sommerville was fatally injured in a moto vehicle accident near bath, england, at age thirty six ref was an electronics technician and computer programmer. He is primarily known through his association with William S. Burroughs s circle of Beat Generation figures, and lived at Paris s so called Beat Hotel by 1960, when they were regulars there, becoming Burroughs s lover and Systems theory systems adviser . Sommerville was educated at the King s School, Canterbury , and at Corpus Christi College, Cambridge . Around 1960, he programmed a random sequence generator that Brion Gysin used in his cut up technique . He and Gysin also collaborated in 1961 in developing the Dreamachine , a phonograph driven stroboscope described as the first art object to be seen with the eyes closed , ref Quoted on cover flap of Tuning in to the Multimedia Age . ref and intended to affect the viewer s brain alpha wave activity. Sommerville and Burroughs made the 5 minute tape Silver Smoke of Dreams in the early 1960s, and later provided the basis for the quarter hour audio cut up and K 9 Was in Combat with the Alien Mind Screens around 1965. The following year Sommerville also installed two Revox reel to reel machines for Paul McCartney in Ringo Starr s apartment at 34 Montagu Square, Marylebone , London , and recorded Burroughs on the machine. ref name MilesPage240 Miles. pp240 ref Sommerville along with Gysin and Burroughs collaborated on Let The Mice In , published in 1973. ref Ed. Jan Herman. Vermont Something Else Press, 1973. ref Burroughs book My Education A Book of Dreams , indeed largely composed of accounts of his dreams, includes dreams of talking with Sommerville. He died in a single car accident due to inexperience near Bath, Somerset Bath, England in 1976 shortly after obtaining his first driving licence. ref name Geiger References Reflist Persondata Metadata see Wikiped ... more details
Infobox Album See Wikipedia WikiProject Albums Name Wheels Are Turnin Type Album Artist REO Speedwagon Cover Wheelsareturnin.jpg Released November 1984 Recorded January August 1984 Genre Rock music Rock , Album Oriented Rock AOR Length 39 31 Label Epic Records Epic Producer Kevin Cronin Gary Richrath Alan Gratzer Reviews Allmusic Rating 3 5 Allmusic class album id r16451 pure url yes link Last album Good Trouble br 1982 This album Wheels Are Turnin br 1984 Next album Life as We Know It album Life as We Know It br 1987 Wheels Are Turnin is the eleventh studio album by REO Speedwagon , released in 1984 see 1984 in music . It features Can t Fight This Feeling, which was REO s second and longest running 1 single. The LP version contained a cut out stroboscope . Other singles released were One Lonely Night I Do Wanna Know , and Live Every Moment . Track listing I Do Wanna Know Kevin Cronin 4 12 One Lonely Night Neal Doughty 3 20 Thru the Window Bruce Hall, Jeffery B. Hall 5 01 Rock n Roll Star Gary Richrath, Cronin, Tom Kelly 3 40 Live Every Moment Cronin 4 56 Can t Fight This Feeling Cronin 4 54 Gotta Feel More Cronin, Richrath, Kelly 4 26 Break His Spell Richrath 2 57 Wheels Are Turnin Cronin 5 47 Personnel REO Speedwagon Kevin Cronin Lead vocalist Lead vocals , acoustic guitar all tracks except 3 , rhythm guitar track 3 , Backing vocalist background vocals Gary Richrath Lead guitar , electric guitar , wah wah pedal wah wah guitar track 3 Neal Doughty organ music Organ , synthesizer , piano Alan Gratzer Drum kit Drums Bruce Hall bass guitar Bass Other Musicians Steve Forman Percussion track 3 , conga track 5 , Shaker instrument Shaker tracks 5 and 9 Bill Cuomo Orchestration track 6 Richard Page musician Richard Page Backing vocals Tom Kelly musician Tom Kelly Backing vocals Tommy Funderburk Backing vocals ref http www.discogs.com REO Speedwagon Wheels Are Turnin release 2064635 REO Speedwagon Wheels are Turnin Discogs.com Retrieved 2 20 2011. ref References reflist htt ... more details
Franz von Uchatius 1811 1881 was an Austrian artillery general and inventor. His inventions included both military applications and pioneer work in cinematography. He invented a motion picture projector in the early 1850s ref http science.jrank.org pages 4466 Motion Pictures invention motion pictures.html Motion Pictures The Invention Of Motion Pictures Bot generated title ref , developing it over the years from 1845 ref http www.angelfire.com film eliab intro.html Film Principles Class Notes Bot generated title ref from the device then called stroboscope Simon von Stampfer ref http www.acmi.net.au aic MAGIC MACHINES 2.html Adventures in CyberSound Magic Machines 1826 1875 Bot generated title ref and phenakistiscope Joseph Plateau ref http www.acmi.net.au AIC VON UCHATIUS BIO.html Adventures in CyberSound von Uchatius, Franz Bot generated title ref . This was the first example of projected animation ref http www.animated divots.com chrnearl.html Chronology of Animation Beginning Bot generated title ref , demonstrated in 1853 ref http www.terramedia.co.uk Chronomedia years 1850 1854.htm Chronomedia 1850 1854 Bot generated title ref it is also described as the combination of the zoetrope with the magic lantern ref http sophia.javeriana.edu.co ochavarr computer graphics history historia An Historical Timeline of Computer Graphics and Animation Bot generated title ref . It was called the kinetoscope ref http www.filmreference.com encyclopedia Academy Awards Crime Films Cartoons.html Cartoons The golden era, The television era Bot generated title ref , a term later used by Thomas Edison see kinetoscope . He applied it to lecture on ballistics ref William Everdell, The First Moderns 1997 , 13 14. ref . He worked also on a smokeless powder ref http www.1911encyclopedia.org Gunpowder Gunpowder LoveToKnow 1911 Bot generated title ref , improved cannons and alloys his steel bronze was a copper tin alloy ref s 1911 Encyclop dia Britannica Bronze ref , and a balloon bomb, used ... more details
Image Koenig manometric flame device.gif thumb 300px Koenig s manometric flame apparatus 1862 Koenig s manometric flame apparatus was a laboratory instrument invented in 1862 by the Germany German physicist Rudolph Koenig , and used to visualize sound wave s. It was the nearest equivalent of the modern oscilloscope in the late nineteenth and early twentieth centuries. Description The manometer manometric flame apparatus consisted of a chamber which acted in the same way as a modern microphone . Sound from the source to be measured was concentrated by means of a horn or tube into one half of the capsule chamber. The chamber was divided in two by an elastic Diaphragm mechanical device diaphragm , usually rubber. The sound caused the diaphragm to vibrate which modulated a flow of flammable Gas lighting illumination gas passing through the other half of the chamber. The illumination gas was passed to a Bunsen burner , the flame of which would then increase or decrease in size at the same frequency as the sound source. ref name SciTechAntiques Jim & Rhoda Morris at SciTechAntiques. ref ref name CaseW http www.phys.cwru.edu ccpi Flame manometer.html Flame manometer Case Western Reserve University Physics Department ref The change in flame size was too fast to be easily seen with the naked eye and a stroboscope , usually in the form of a rotating many sided mirror was used to view the flame. The frequency of the sound could then be calculated from the apparent distance between the flame images in the mirror and the known speed of its rotation. ref name SciTechAntiques ref name CaseW Image Manometric flame diagram from Koenig Acoustic Catalogue 1865.jpg thumb right 300px The bunsen flame of the manometric flame apparatus seen in the rotating mirror. From Rudolph Koenig s catalogue of 1865 Alexander Graham Bell used this type of equipment to study the performance of his microphones and demonstrated it in his display at the 1876 Centennial Exposition Philadelphia Centenarian ... more details
Disc also called the Zoetrope , Stroboskopische Sheiben , Stroboscope Discs , optical magic disc , or simply Stroboscope . It consists of two disks One with slits around its circumference, and another ... more details
File Joseph Plateau.jpg thumb 200px Daguerrotype portrait of Belgian physicist Joseph Plateau dated 1843 Joseph Antoine Ferdinand Plateau 14 October 1801 &ndash 15 September 1883 was a Belgium Belgian physicist . He was the first person to demonstrate the illusion of a moving image. To do this he used counter rotating disks with repeating drawn images in small increments of motion on one and regularly spaced slits in the other. He called this device of 1832 the phenakistoscope . Life Born in Brussels , he studied at the University of Li ge Li ge city Li ge , where he graduated as a doctor of physical and mathematical sciences in 1829. In 1827 he became a teacher of mathematics at the Atheneum school in Brussels. In 1835, he was appointed Professor of experimental physics in Ghent University . In 1829 Joseph Plateau submitted his doctoral thesis to his mentor Adolphe Quetelet for advice. It contained only 27 pages, but formulated a great number of fundamental conclusions. It contained the first results of his research into the effect of colours on the retina duration, intensity and colour , his mathematical research into the intersections of revolving curves locus , the observation of the distortion of moving images, and the reconstruction of distorted images through counter revolving discs he dubbed these anorthoscope anorthoscopic discs . ref Museum of Science , Ghent ref Image phenakistiscope.jpg thumb 250px Plateau s phenakistiscope In 1832, Plateau invented an early stroboscope stroboscopic device, the phenakistoscope , the first device to give the illusion of a moving image. It consisted of two disks, one with small equidistant radial windows, through which the viewer could look, and another containing a sequence of images. When the two disks rotated at the correct speed, the synchronization of the windows and the images created an animated effect. The projection of stroboscopic photographs, creating the illusion of motion, eventually led to the development of ... more details
Infobox scientist name Harold Eugene Edgerton box width image image width 150px caption Harold Eugene Edgerton birth date birth date April 6, 1903 April 6, 1903 birth place Fremont, Nebraska death date death date January 4, 1990 January 4, 1990 death place Cambridge, Massachusetts residence citizenship nationality ethnicity spouse Esther May Garrett children Robert Frank Edgerton br William Eugene Edgerton br Mary Louise Edgerton field Engineering work institutions Massachusetts Institute of Technology alma mater University of Nebraska Lincoln , Massachusetts Institute of Technology doctoral advisor doctoral students known for Stroboscope author abbrev bot author abbrev zoo influences influenced prizes religion footnotes signature For the police officer see Harry Edgerton Harold Eugene Doc Edgerton April 6, 1903 &ndash January 4, 1990 was a professor of electrical engineering at the Massachusetts Institute of Technology . He is largely credited with transforming the stroboscope from an obscure laboratory instrument into a common device. Biography Early years He was born in Fremont, Nebraska on April 6, 1903, the son of Mary Nettie Coe and Frank Eugene Edgerton, ref http www.usgennet.org usa ne topic resources OLLibrary Nebraskana pages nbka0099.htm Nebraska Genealogy Frank Eugene Edgerton ref ref http freepages.genealogy.rootsweb.ancestry.com edgerton FrankEugene1875.htm Frank Eugene Edgerton Mary Nettie Coe rootsweb ref a direct descendant of Richard Edgerton, one of the founders of Norwich, Connecticut and a descendent of Governor William Bradford 1590 1657 of the Plymouth Colony and a passenger on the Mayflower . His father was a lawyer, journalist, author and orator and served as the assistant attorney general of Nebraska from 1911 to 1915. Harold grew up in Aurora, Nebraska . He also spent some of his childhood years in Washington, D.C. , and Lincoln, Nebraska . Education In 1925 he received a bachelor s degree in electrical engineering from the University of N ... more details
of counts N is small. By stroboscope An older method of measuring the frequency of rotating or vibrating objects is to use a stroboscope . This is an intense repetitively flashing light strobe light whose ... appears stationary. Then the frequency can be read from the calibrated readout on the stroboscope ... more details
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