User:Spinningspark/DYK hits

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Featured articles[edit]

Featured article Waveguide filter is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Wikipedia community. Promoted January 2, 2014
Main Page trophy This article appeared on Wikipedia's Main Page as Today's featured article on January 10, 2014. 20.0k hits
Featured list List of chronometers on HMS Beagle is a featured list; it (or a previous version of it) has been identified as one of the best lists produced by the Wikipedia community. Promoted June 18, 2012
Main Page trophy This article appeared on Wikipedia's Main Page as Today's featured list on June 17, 2013. 8,751 hits
Featured article Golding Bird is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Wikipedia community. Promoted March 13, 2012
Main Page trophy This article appeared on Wikipedia's Main Page as Today's featured article on May 2, 2012. 18.6k hits
Featured article Mechanical filter is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Wikipedia community. Promoted November 3, 2010
Main Page trophy This article appeared on Wikipedia's Main Page as Today's featured article on December 11, 2010. 21.4k hits
Featured article Distributed element filter is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Wikipedia community. Promoted July 5, 2010
Main Page trophy This article appeared on Wikipedia's Main Page as Today's featured article on July 17, 2010. 13.5k hits
Featured article Otto Julius Zobel is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Wikipedia community. Promoted October 3, 2009
Main Page trophy This article appeared on Wikipedia's Main Page as Today's featured article on January 28, 2012. 10.0k hits

GA listings[edit]

Good article Staggered tuning has been listed as one of the Engineering and technology good articles. Listed 30 January 2015. (Nomination)
Good article Double-tuned amplifier has been listed as one of the Engineering and technology good articles. Listed 30 January 2015. (Nomination)
Good article Henry Nock has been listed as one of the Engineering and technology good articles. Listed 24 December 2014. (Nomination)
Good article Foster's reactance theorem has been listed as one of the Engineering and technology good articles. Listed 8 October 2014. (Nomination)
Good article Ship's chronometer from HMS Beagle has been listed as one of the Engineering and technology good articles. Listed 5 October 2014. (Nomination)
Good article Indoor-outdoor thermometer has been listed as one of the Engineering and technology good articles. Listed 1 October 2014. (Nomination)
Good article Impedance analogy has been listed as one of the Engineering and technology good articles. Listed 30 September 2014. (Nomination)
Good article Ammonia fuming has been listed as one of the Art and architecture good articles. Listed 5 December 2013. (Nomination)
Good article Reflections of signals on conducting lines has been listed as one of the Engineering and technology good articles. Listed 27 September 2013. (Nomination)
Good article Slotted line has been listed as one of the Engineering and technology good articles. Listed 4 September 2013. (Nomination)
Good article Primary line constants has been listed as one of the Engineering and technology good articles. Listed 21 August 2013. (Nomination)
Good article Antimetric electrical network has been listed as one of the Engineering and technology good articles. Listed 7 August 2013. (Nomination)
Good article Flitch of bacon custom has been listed as one of the Social sciences and society good articles. Listed 17 July 2013. (Nomination)
Good article Waveguide filter has been listed as one of the Engineering and technology good articles. Listed 9 July 2013. (Nomination)
Good article Wooden Leg: A Warrior Who Fought Custer has been listed as one of the History good articles. Listed 22 June 2013. (Nomination)
Good article Frog battery has been listed as one of the Natural sciences good articles. Listed 14 May 2013. (Nomination)
Good article Danish Bacon has been listed as one of the Agriculture, food and drink good articles. Listed 29 April 2013. (Nomination)
Good article Wilhelm Cauer has been listed as one of the Mathematics good articles. Listed 6 August 2012. (Nomination)
Good article Nominal impedance has been listed as one of the Engineering and technology good articles. Listed 2 May 2012. (Nomination)
Good article Topology (electrical circuits) has been listed as one of the Engineering and technology good articles. Listed 20 March 2012. (Nomination)
Good article Evan O'Neill Kane has been listed as one of the Natural sciences good articles. Listed 31 December 2011. (Nomination)
Good article Waffle-iron filter has been listed as one of the Engineering and technology good articles. Listed 28 December 2011. (Nomination)
Good article Vitold Belevitch has been listed as one of the Engineering and technology good articles. Listed 15 October 2011. (Nomination)
Good article Voltage doubler has been listed as one of the Engineering and technology good articles. Listed 11 October 2011. (Nomination)
Good article Power dividers and directional couplers has been listed as one of the Engineering and technology good articles. Listed 14 September 2011. (Nomination)
Good article Golding Bird has been listed as one of the Natural sciences good articles. Listed 3 August 2011. (Nomination)
Good article Pulvermacher's chain has been listed as one of the Engineering and technology good articles. Listed 19 June 2011. (Nomination)
Good article Harpy Tomb has been listed as one of the Art and architecture good articles. Listed 8 May 2011. (Nomination)
Good article Prototype filter has been listed as one of the Engineering and technology good articles. Listed 26 August 2010. (Nomination)
Good article Composite image filter has been listed as one of the Engineering and technology good articles. Listed 4 August 2010. (Nomination)
Good article m-derived filter has been listed as one of the Engineering and technology good articles. Listed 14 April 2010. (Nomination)
Good article Mechanical filter has been listed as one of the Engineering and technology good articles. Listed 9 April 2010. (Nomination)
Good article Distributed element filter has been listed as one of the Engineering and technology good articles. Listed 18 February 2010. (Nomination)
Good article Constant k filter has been listed as one of the Engineering and technology good articles. Listed 26 August 2009. (Nomination)
Good article Passive analogue filter development has been listed as one of the Engineering and technology good articles. Listed 07:17, 31 July 2009. (Nomination)
Good article Otto Julius Zobel has been listed as one of the Engineering and technology good articles. Listed 02:04, 8 August 2008. (Nomination)

DYK listings[edit]

Updated DYK query On 2 November 2014, Did you know?

... that according to the impedance analogy, a spring is analogous to an electrical capacitor? 1,677 hits

Updated DYK query On 30 December 2013, Did you know?

... that according to the Imperial War Museum, the youngest authenticated British soldier in World War I 9,681 hits

Updated DYK query On 8 November 2013, Did you know?

... that the technique of darkening oak by ammonia fuming was discovered accidentally when boards stored in a stable were darkened by fumes from horse urine? 3,247 hits

Updated DYK query On 4 June 2013, Did you know?

... that a slotted line for microwave measurement can be made for roughly one ten-thousandth of the cost of a network analyzer? 2,756 hits

Updated DYK query On 17 May 2013, Did you know?

... that via fences (pictured), used to shield printed circuit lines, can also be used to form waveguides? 6,224 hits

Updated DYK query On 4 May 2013, Did you know?

... that waveguide filters {example pictured) used in multiplexers originally needed decoupling resonators for each input, but these were found to be unnecessary by E. J. Curly when he accidentally mistuned a diplexer? 5,028 hits

Updated DYK query On 23 February 2013, Did you know?

... that the Cooke and Wheatstone telegraph (pictured), the first electric telegraph to be put into commercial service, was initially rejected in favour of a pneumatic system with whistles? 2,941 hits

Updated DYK query On 11 November 2012, Did you know?

... that write-only memory, devised as an insider joke, does have real uses and may even increase the power of a quantum computer? 3,878 hits

Updated DYK query On 17 January 2012, Did you know?

... that the outdoor parts of indoor-outdoor thermometers are used indoors by building service engineers by swinging them around? 3,024 hits

Updated DYK query On 20 November 2011, Did you know?

... that the waffle-iron filter from electronics is used on industrial microwave heaters because product can be continuously fed through the inside of the filter? 2.6k hits

Updated DYK query On 10 June 2011, Did you know?

... that electric circuit theorist Vitold Belevitch discovered a mathematical basis for Zipf's law from linguistics? 829 hits

Updated DYK query On 24 May 2011, Did you know?

... that HMS Beagle's chronometers (example pictured) were so important to its mission that John Lort Stokes rescued one despite being speared in the chest by an indigenous Australian? 10.6k hits

Updated DYK query On 17 May 2011, Did you know?

... that steam devils can be more important than convection in vertically transporting moisture during cold air outbreaks? 3.6k hits

Updated DYK query On 8 May 2011, Did you know?

... that a frog battery can decompose potassium iodide? 6.0k hits

Updated DYK query On 7 May 2011, Did you know?

... that Pulvermacher's chain battery was used in experiments by dentists in an attempt to anaesthetise patients with electric shocks? 1.7k hits

Updated DYK query On 3 May 2011, Did you know?

... that the skinny triangle is used by snipers to estimate target range? 8.1k hits

Updated DYK query On 1 March 2011, Did you know?

... that physician Golding Bird invented the electric moxa in order to save patients from having to be burnt with glowing charcoal? 2.9k hits

Updated DYK query On June 18, 2010, Did you know?

... that the Harpy Tomb (pictured) from ancient Xanthos was originally mounted on a stone pedestal seventeen feet above the ground? 5.5k hits

Updated DYK query On June 13, 2010, Did you know?

... that a ship's chronometer from HMS Beagle made by Thomas Earnshaw is now in the British Museum? 266 hits

Updated DYK query On June 10, 2010, Did you know?

... that Foster's reactance theorem ensures that plots on a Smith chart of an electrical network impedance function always travel around the chart in a clockwise direction with increasing frequency? 756 hits

Updated DYK query On May 14, 2010, Did you know?

... that Wooden Leg didn't have one? 6.4k hits

Updated DYK query On March 2, 2010, Did you know?

... that Bio-Blend Fuels produce a biodiesel made from pig fat that smells of bacon? 735 hits

Updated DYK query On March 1, 2010, Did you know?

... that Sir Henry Bate Dudley not only chronicled the life of Gainsborough but also wrote the comic opera The Flitch of Bacon? 222 hits

Updated DYK query On March 1, 2010, Did you know?

... that a flitch of bacon was offered at Wychnor Hall to married couples if they could swear that they did not regret their union, but it was so rarely claimed it was replaced with a wooden one? 7.3k hits

Updated DYK query On March 2, 2010, Did you know?

... that Danish Bacon is sliced, packed, and sold in the UK? 3.0k hits

Updated DYK query On December 27, 2009, Did you know?

... that the Guinea hog breed of pig was kept by former US President Thomas Jefferson? 2.0k hits

Updated DYK query On November 26, 2009, Did you know?

... that a mechanical filter of phonograph parts (pictured) was designed by Edward Norton as a Butterworth filter prior to Stephen Butterworth publishing his electronic design? 2.0k hits

Updated DYK query On November 16, 2009, Did you know?

... that distributed element filters can use a wide and varied library of printed elements including butterfly and clover stubs? 1.6k hits

Updated DYK query On August 19, 2009, Did you know?

... that AT&T once released designs for 83,539 equivalent transforms of a circuit into the public domain just to deny their competitors the ability to patent them? 3.9k hits

Updated DYK query On August 18, 2009, Did you know?

... that a quarter wave impedance transformer can make an electrical open circuit look like a short circuit? 1.5k hits

Updated DYK query On July 25, 2009, Did you know?

... that surgeon Dr. Evan O'Neill Kane signed his handiwork by tattooing the letter K in Morse code on his patients in India ink? 3.2k hits

Updated DYK query On July 13, 2009, Did you know?

... that roll-off is an electronic filter parameter of significance for removing muscle activity noise in electrocardiograph machines? 691 hits

Updated DYK query On July 11, 2009, Did you know?

... that in designing a new analogue filter, Sidney Darlington found tables of the exact elliptic functions required in an 1829 Latin paper by Carl Jacobi in the New York City Library? 1.2k hits

Updated DYK query On May 19, 2009, Did you know?

... that minimum orbit intersection distance is one of the measures used to determine if a near-Earth object, such as (4953) 1990 MU (orbit pictured), is a Potentially Hazardous Object? 3.6k hits

Updated DYK query On March 13, 2009, Did you know?

... that Henry Wilde melted iron bars to demonstrate the power of his self-energizing dynamo, a machine based on his paper presented to the Royal Society in 1866? 1.8k hits

Updated DYK query On January 13, 2009, Did you know?

... that one form of the general image filters invented by Otto Zobel is a particularly simple band-pass filter consisting of just resonators coupled by capacitors? 1.2k hits

Updated DYK query On January 10, 2009, Did you know?

... that Heinrich Greinacher invented his voltage doubler circuit in 1913 because the 110 volt power supply in Zürich was insufficient for his newly invented ionometer which required 200 volts? 1.7k hits

Updated DYK query On January 4, 2009, Did you know?

... that Paul Boucherot and his partner Georges Claude built an ocean thermal energy conversion plant in Cuba as long ago as 1926? 339 hits

Updated DYK query On December 30, 2008, Did you know?

... that Bartlett's bisection theorem can be used in the design of quartz crystal filter circuits to overcome drawbacks of traditional ladder topology? 1.0k hits

Updated DYK query On December 28, 2008, Did you know?

... that a principal work of mathematician Wilhelm Cauer was twice destroyed during World War II and was only published after his death by his family, who reconstructed it from the table of contents? 1.0k hits

Updated DYK query On October 9, 2008, Did you know?

... that although Carl Emil Krarup was originally a civil engineer, he was responsible for the first ever continuously loaded submarine telecommunication cable? 1.2k hits

Updated DYK query On October 3, 2008, Did you know?

... the loading coil saved AT&T an estimated US$100 million in the first quarter of the 20th century but Oliver Heaviside was paid nothing for the idea? 6.3k hits

Updated DYK query On 29 September, 2008, Did you know?

... that George Ashley Campbell decided to use loading coils for improving telephone line quality only after he realized that the manholes were the right distance apart to allow this cheaper solution? 865 hits + 1.7k hits for loading coil

Updated DYK query On September 24, 2008, Did you know?

... that the lattice phase equaliser was invented by Otto Zobel, better known for his work on constant-resistance networks to equalise amplitude? 2.6k hits

Updated DYK query On September 17, 2008, Did you know?

... that Twin-T topology can be used as a substitute for bridge topology in many electronic circuits when grounding is an issue? 2.5k hits

Updated DYK query On June 25, 2008, Did you know?

... that administering a strong solution of coffee through the rectum by means of a Murphy drip was alleged to have been a treatment for shock at the Battle of Midway? 10.1k hits

Updated DYK query On June 22, 2008, Did you know?

... that Otto Zobel described a method of using prototype filters that does not use the frequency domain to represent their transfer function? 594 hits

Updated DYK query On June 7, 2008, Did you know?

... that the constant k filter was invented by George Campbell but named by Otto Zobel, the inventor of the m-derived filter – both used in composite image filters? hit counter offline

Updated DYK query On May 28, 2008, Did you know?

... that the 120-cell 4-dimensional puzzle (pictured) is one of several n-dimensional sequential move puzzles that have been implemented as virtual puzzles but have never been solved? 17.5k hits

Updated DYK query On April 18, 2008, Did you know?

... that AT&T engineer Otto Zobel helped to establish that electronic noise cannot be completely eliminated from radio and cable transmissions? 1.8k hits