Wikipedia

CheChe

Joined 15 March 2016

Imagine a world in which every single person on the planet is given free access to the sum of all human knowledge. That's what we're doing.
This editor is a Journeyman Editor and is entitled to display this Service Badge.

The very existence of Wikipedia is proof that there are more people in the world wanting to build than to tear down. Were that not true, vandals would have overwhelmed and destroyed us years ago.

— Antandrus

I believe knowledge should be beautiful! If you need any help with diagrams just let me know and I'll see what I can do.

My main focus of work lately has been the Group Testing article, which recently passed its GA review. Next I'm hoping to take this article to featured, so any suggestions or feedback is welcome.

I am also currently recording a spoken version of the Earth article. You can find my script here.

General notes edit

Propose merge of Wythoff symbol and Wythoff construction

Links I find useful edit

Krinkle: Special:BlankPage/RTRC

Goals: User:Kelvin13

Planned vectorisations edit

Upload checklist edit

  • Upload image
  • (Remove SVG request / link to new version)
  • Link back to source / credit on new version
  • Update Wikipedia pages
  • Update user page

Gallery edit

Here you can see most of the graphical work that I've uploaded to date (almost entirely SVGs) in reverse chronological order. Note that many of these are vectorisations of previous works. In these cases, click on the image to find a link to the original author. I do all my vectorisations by hand to ensure the best quality (compare this and that to see what I mean: one tenth the file size, incalculably better quality). For a full list of uploads see my upload list.

Main gallery
  •  
    Aristotle's axiom is weaker than the parallel postulate.
  •  
    A rotating shaft unbalanced by two attached weights.
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    Possible spin angular momentum values for 1/2 spin particles.
  •  
    Force diagram in co-rotating frame for water surface in rotating bucket.
  •  
    Conjugate poles in left s-plane.
  •  
    A coelomate animal is essentially a set of concentric tubes.
  •  
    Payment streams represented by actuarial notation for annuities of term n.
  •  
    Current continuity in capacitor using displacement current.
  •  
    Hemispherical dome that appears alongside other dome designs.
  •  
    Vectors showing relation between an object's proper motion and its velocity.
  •  
    The dihedral angle (red) is between two half-planes (blue).
  •  
    Grass flower with vestigial perianth, also known as lodicules.
  •  
    An illustration of message collision in multiaccess channels.
  •  
    An illustration of the generalised binary splitting algorithm.
  •  
    An illustration for the a common Group testing problem.
  •  
    Symbol for an royal knight used in chess variant games.
  •  
    Icon of a fairy chess piece used in chess variant games.
  •  
    Illustration showing the semi-major axis of an ellipse.
  •  
    Operation Uranus Deception German View 18 Nov 1942 (1989).
  •  
    Actual Soviet Dispositions with subsequent attacks (1942).
  •  
    Forces on rotating spheres tied with string with angular velocity ω.
  •  
    Rotating spheres tied with string with angular velocity ω.
  •  
    A point in spherical coordinates has a latitude φ and longitude ω.
  •  
    A stereographic projection from the north pole onto a plane below the sphere.
  •  
    See File:Line elements.svg for how not to do an SVG conversion.
  •  
    Wasps are paraphyletic, consisting of the Apocrita without Ants and Bees.
  •  
    Diagram explaining Path integration, core function of Animal navigation.
  •  
    An attacker remains on a line between the target and the start.
  •  
    Whales are paraphyletic with respect to the dolphins and porpoises.
  •  
    Dazzle camouflage is meant to cause the enemy to take up a poor position.
  •  
    The structures that provide structural coloration in Papilio palinurus.
  •  
    The reflectors are oriented nearly vertically to provide effective camouflage.
  •  
    Dispersal of melanophores controls colour change in fish and frogs.
  •  
    A flanged body or a camouflage net helps to hide a shadow.
  •  
    Countershading acts as a form of camouflage with a flat appearance.
  •  
    Archimedes' considered the smallest cylinder containing a sphere.
  •  
    An animation of a solution to the false coin problem, a group-tesing problem.
  •  
    An illustration of the COMP algorithm. This one correctly labels a and b.
  •  
    A non-adaptive group testing setup. y contains the result of each test.
  •  
    llustration of the unit circle, showing the direction of positive / negative angles.
  •  
    Illustration of a vector field, called F, over a surface, called  .
  •  
    Illustration of the projected orbit of the meteorite Neuschwanstein.
  •  
    A shape can be made more round while keeping its perimeter fixed.
  •  
    An illustration of the inverse of a circle not passing through O.
  •  
    An illustration of the inverse of a circle passing through O.
  •  
    Illustration of the vectors involved in the parallelogram law.
  •  
    Illustration of a convex set containing the two points X and Y.
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    Illustration of a concave set containing the two points X and Y.
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    Diagram illustrating a change in order of integration.
  •  
    Lattice of Gaussian integers in the complex plane. The point 3+2i is also displayed.
  •  
    Astronomical diagram describing altitude and azimuth.
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    Diagram illustrating the dot and cross products together.
  •  
    The Pythagorean Theorem using regular pentagons on each side.
  •  
    A generalisation of Pythagoras to 3 dimensions (Brews Ohare).
  •  
    Generalization of Pythagoras's theorem by Tâbit ibn Qorra.
  •  
    Construction to generalise Pythagoras' theorem to arbitrary triangles.
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    Generalisation of Pythagoras' theorem to scalene triangle.
  •  
    Illustration of the vectors involved in the parallelogram identity.
  •  
    An illustration of the central angle, Δσ, between two points.
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    The separation s of two points (r1, θ1) and (r2, θ2) in polar coordinates.
  •  
    Components of proper motion. The celestial north pole is CNP.
  •  
    Euclid's construction for square roots of integers (Pythagorean theorem).
  •  
    A proof for Pythagoras' theorem using similar triangles.
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    Pythagoras' applied to similar triangles on the sides of a right triangle.
  •  
    Similar right triangles showing the sec and tan trig functions.
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    Similar triangles showing sine and cosine (Trigonometric identity)
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    Third illustration of a series on Euclid's proof of Pythagoras' theorem.
  •  
    Diagram illustrating the eccentric and true anomalies of an ellipse
  •  
    Geometric construction for Kepler's calculation of θ. (Kepler's laws)
  •  
    Diagram of simple slope correction in surveying (Tape correction).
  •  
    An example of connected directed network with two components (shaded).
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    An example of disconnected directed network with sections shaded.
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    A diagram illustrating great-circle distance (drawn in red).
  •  
    A small network with both multiedges and self-edges (Newman, Mark E. J.).
  •  
    Structural formula of the chemical compound 1-methylindole
  •  
    Derivation involving atan2.
Icons

Total: 70

The Brews project edit

The Brews Project is a personal project of mine to vectorise many of the great diagrammatical contributions of Brews ohare.

--Progress--
SVG requests made: 99
Conversions made (✓): 26
Conversions already done (✗): 1
Currently planned (@): 0

Below is a sort of todo list I'm working my way through.

Click to show →

From user page
File:Step response for two-pole feedback amplifier.PNG
✓ File:Conjugate poles in s-plane.PNG
File:Feedback amplifier input resistance.PNG
File:Small-signal current amplifier with feedback.PNG
File:Barrier lowering.PNG
File:MOSFET junction structure.png
File:Pole Splitting Example.png
File:Pole Splitting Example with Miller Transform.png
✓ File:Vector field on a surface.PNG
File:Faraday's disc.PNG
File:Disc-to-strip mapping.PNG
✓ File:Earth coordinates.PNG
File:Widlar small-signal.PNG
✓ File:Integration Order.PNG
File:Moving coordinate system.PNG
✓ File:Anomalies.PNG
✓ File:ForceDiagram.PNG
File:Accelerating car.PNG
File:Silicon conduction band ellipsoids.JPG
File:Points of view.PNG
File:Neutron star cross-section.JPG
File:Current continuity in capacitor.JPG
File:Velocity-redshift.JPG
File:Phase diagram for pure substance.JPG
File:Phases of Nuclear Matter.JPG
File:Matter Distribution.JPG
File:Wavelength & refractive index.JPG
File:Wavelength indeterminacy.JPG
File:Local wavelength.JPG
File:Interferometer path differences.JPG
File:Nonsinusoidal wavelength.JPG
File:Reaction path.JPG
File:Stellar aberration.JPG
File:Wedge product.JPG
File:Flank & hinge.PNG
File:Cylindrical fold.PNG
File:Advancing ramp in incompetent layers.PNG
File:Ramsay Classification.PNG
File:SubductionDelamination.JPG
File:Volcanoes at subduction.JPG
File:Fault block mountain.JPG
File:StrikeLine&Dip.JPG
File:Earth temperature.PNG
File:Speeds of seismic waves.PNG
File:S-wave velocity.PNG
✓ File:Pythagoras for scalene triangle.PNG
✓ File:Parallelpiped volume.PNG
✓ File:Pythagoras 3D.PNG
✓ File:Line elements.PNG
✓ File:Eccentric and true anomaly.PNG
✓ File:Tâbit ibn Qorra.PNG
✓ File:Law of cosines.PNG
✓ File:Pytthagoras construction.PNG
✓ File:Parallelogram equality.PNG
File:Inertial frames.PNG
✓ File:Unbalanced rotating shaft.PNG
File:Michelson interferometer with corner cubes.png
File:Reactive centrifugal force in uniform circular motion.PNG
File:Black-body realization.png
File:Idealized photosphere.png
File:MOSFET Structure.png
File:Semiconductor band-bending.png
File:Inversion with source-body bias.png
File:Two diode structures.png
File:Pn-junction zero bias.png
File:Pn-junction forward bias.png
✗ File:Diode quasi-fermi levels.png
File:Pn-junction reverse bias.png
File:Quasi-Fermi levels.png
File:PN-diode small-signal circuit2.png
File:FINFET MOSFET.png
File:Modulated wave.png
File:Signal envelopes.png
File:Double-slit diffraction pattern.png
File:Phonon dispersion relations in GaAs.png
File:Electron probabilities in GaAs quantum well.png
File:Diatomic phonons.png
File:Optical & acoustic vibrations.png
File:Ontological commitments.png
File:Resource allocation.png
File:Set-point control.png
File:Regulator with feedback.png
File:Feedback op-amp voltage amplifier.png
File:Negative feedback amplifier with disturbance.png
File:Feedback topologies.png
File:Signal flow graph for feedback amplifier.png
File:Signal flow graph example.png
File:Flow graph for three linear equations.png

From elsewhere
✓ File:Illustration to Euclid's proof of the Pythagorean theorem3.PNG
✓ File:Euclid Corollary 5.PNG
✓ File:Trig Functions.PNG
✓ File:Trig Functions 2.PNG
✓ File:Pythagoras applied to similar triangles.PNG
✓ File:Pythagoras by similar triangles.PNG
✓ File:Components of proper motion.JPG
File:Widlar Current Source.PNG
✓ File:Parallelogram law.PNG
✓ File:Rotating spheres.PNG
✓ File:Rotating-sphere forces.PNG

Good Article reviews edit

A good article is an article that has passed an independent review ensuring that it is well written, verifiable, broad, neutral and if possible, illustrated. You can identify good articles by this icon:  , which appears in their top right corner. Below you can find a list of the good-article reviews that I've conducted, as well as the template that I use to do them.

Review Submission Date Result
Proxima Centauri b 25/02/17  
Convergent evolution 20/01/17  
Proxima Centauri b 20/10/16  
Rule 90 19/10/16  
Burton Diamond 19/10/16  

Total: 5 (P/F : 4/1)

Template: edit

Summary edit

Breakdown edit

Writing and compliance with Manual of Style edit

  1. Prose is clear and concise.
  2. Lead section.
  3. Layout.
  4. Words to watch.
  5. Fiction.
  6. List incorporation.

Verifiability & original Research edit

  1. All references presented in appropriate layout.
  2. Sources are reliable.
  3. Sources support the content.
  4. Likely-to-be-challenged information is cited.
  5. Statistics cited.
  6. No original research.
  7. No copyright violations / plagiarism.

Topic coverage edit

  1. Addresses main aspects of topic.
  2. Stays focused.

Illustrations edit

  1. Images present if possible.
  2. Correct copyright tags.
  3. Images relevant.
  4. Captions appropriate.

Other edit

  • Neutral point of view.
  • Stable.
  • Previous review issues adequately addressed (if applicable).
  • No technical issues.

Copy edits edit

Vector bloom edit

 
Some say that as long as you keep dreaming, your hard work might one day bloom into something beautiful

Vector Bloom is an ongoing initiative of mine hosted once a month. The idea is to draw 10 or more diagrams (vectorisations are permitted) on a single day. Then I'll add comments on how 'the bloom' went.

Update: This initiative has been canceled. Contrary to it's original aims, Vector Bloom ended up decreasing productivity. This is because it incentivised 'saving' vectorisations for later (so I could tackle them all at once). This then created a barrier: if I wanted to do a vectorisation, I would be committing myself to doing 10, or I'd be wasting the ones I did. Anyway, I'd like to find some other way to increase my productivity in this area, but until then, I'll just be working sporadically as usual.

Bloom 1 (14/2/2017)

This bloom was dominated by 'arrow style' diagrams, and I feel like I learnt a lot about easily placing text. I finally started using one of Wikipedia's available fonts for the first time (letter placement issues be gone!). I also drew some icons that we're hoping will make it into a new Wikiproject banner template. All in all it was a pretty successful bloom, though the uploading process to a lot longer than I had anticipated.

Gifts edit

Click to show →
  The Graphic Designer's Barnstar
For your cleaning up of my awful, awful SVGs! Headbomb {talk / contribs / physics / books} 19:24, 29 January 2017 (UTC)
  The Graphic Designer's Barnstar
For your help with Wikipedia:Graphics Lab/Illustration workshop#Icons for "Vital" articles Headbomb {talk / contribs / physics / books} 16:19, 14 February 2017 (UTC)
  The Graphic Designer's Barnstar
For your quality work on the BRFA icons! Headbomb {talk / contribs / physics / books} 00:06, 27 February 2017 (UTC)
  Guild of Copy Editors Leaderboard Award: Total Words, 5th Place
This Leaderboard Barnstar is awarded to CheChe for copyediting 23,962 total words during the GOCE March 2017 Backlog Elimination Drive. Congratulations, and thank you for your contributions! Miniapolis 16:07, 3 April 2017 (UTC)
  Guild of Copy Editors Leaderboard Award: Long Articles, 3rd Place
This Leaderboard Barnstar is awarded to CheChe for copyediting 3 long articles during the GOCE March 2017 Backlog Elimination Drive. Congratulations, and thank you for your contributions! Miniapolis 16:07, 3 April 2017 (UTC)
  Guild of Copy Editors Leaderboard Award: Longest Article, 3rd Place
This Leaderboard Barnstar is awarded to CheChe for copyediting one of the five longest articles – 11,856 words – during the GOCE March 2017 Backlog Elimination Drive. Congratulations, and thank you for your contributions! Miniapolis 16:07, 3 April 2017 (UTC)
  The (old school) League of Copy Editors Barnstar
This barnstar is awarded to CheChe for copy edits totaling over 30,000 words (including bonus and rollover words) during the GOCE March 2017 Backlog Elimination Drive. Congratulations, and thank you for your contributions! Miniapolis 16:07, 3 April 2017 (UTC)

Historical records edit

Links to information on the internal history and evolution of Wikipedia. My current task is to hoover up the primary sources in meta:Category:Wikimedia history. There are also some interesting pages in Category:Wikimedia hardware.

Secondary sources edit

Secondary sources are those which provide any amount of commentary or summary of events. If known/meaningful, the date of the topic under discussion is written in (round brackets), and the date at which the secondary source was written is written in [square brackets].

Timelines edit

Timelines are chronologically ordered lists of events with minimal commentary.

Primary sources edit

Primary sources are direct records/logs of events as they happened with no commentary.

The following are collections of very early discussions. The dates of the discussions are difficult to ascertain, because they have all been moved at least once and many of them are from very early era Wikipedia. Additional date information can be found on their talk pages.

Indices edit

Indices are lists of links to primary or secondary sources without commentary (other than possibly dates) attached.

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