User contributions for WillowW

23 May 2016

• 10:2010:20, 23 May 2016 diff hist +346 User talk:Bev's Book Permission to use images current

29 November 2011

• 04:1304:13, 29 November 2011 diff hist −90 m File:Oxidized DTT.png eliminate ffd template
• 04:1004:10, 29 November 2011 diff hist +1,208 N File:Oxidized DTT.png {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} The tool and the bot are operated by User:Jan Luca and User:Magnus Manske. {{ffd |log = 2011 November 27 |All files in category

11 August 2010

• 22:2522:25, 11 August 2010 diff hist +563 N File:Areal velocity Newton4.svg {{Information |Description={{en|1=Illustration of Newton's geometrical proof that a moving particle sweeps out equal areas in equal times if and only if the force acting on it at the point '''B''' is a central force. Newton discretizes the equations of m
• 22:2422:24, 11 August 2010 diff hist +563 N File:Areal velocity Newton3.svg {{Information |Description={{en|1=Illustration of Newton's geometrical proof that a moving particle sweeps out equal areas in equal times if and only if the force acting on it at the point '''B''' is a central force. Newton discretizes the equations of m
• 22:2322:23, 11 August 2010 diff hist +563 N File:Areal velocity Newton2.svg {{Information |Description={{en|1=Illustration of Newton's geometrical proof that a moving particle sweeps out equal areas in equal times if and only if the force acting on it at the point '''B''' is a central force. Newton discretizes the equations of m
• 22:2122:21, 11 August 2010 diff hist +563 N File:Areal velocity Newton1.svg {{Information |Description={{en|1=Illustration of Newton's geometrical proof that a moving particle sweeps out equal areas in equal times if and only if the force acting on it at the point '''B''' is a central force. Newton discretizes the equations of m

10 August 2010

• 03:4903:49, 10 August 2010 diff hist −1 File:Specific angular momentum.svg →Summary: update variable from theta to beta
• 03:4903:49, 10 August 2010 diff hist 0 File:Specific angular momentum.svg uploaded a new version of File:Specific angular momentum.svg: Change angle θ to β to sidestep potential confusion of students, who might expect that θ is the angle between '''r''' and '''v''', rather than its complement.
• 03:3903:39, 10 August 2010 diff hist 0 File:Areal velocity circle.svg uploaded a new version of File:Areal velocity circle.svg: Add φ subscript to ''v'' to clarify that it's the azimuthal velocity. In principle, this change allows this image to be used in general discussions of the specific angular momentum ''h''.
• 03:2103:21, 10 August 2010 diff hist +3 File:Areal velocity circle.svg →Summary: more cancer of the colon, sigh
• 03:2003:20, 10 August 2010 diff hist +837 N File:Areal velocity circle.svg {{Information |Description={{en|1=Image to be used to clarify the concept of areal velocity by the example of uniform circular motion. Here, the area ''A'' equals ½ ''r''² φ = ½ ''r''²&nbsp
• 02:0402:04, 10 August 2010 diff hist +1 m File:Specific angular momentum.svg →Summary: cancer of the colon ;
• 02:0402:04, 10 August 2010 diff hist +51 File:Specific angular momentum.svg →Summary: fix internal wiki-links
• 01:5401:54, 10 August 2010 diff hist 0 File:Areal velocity2.svg uploaded a new version of File:Areal velocity2.svg: Very minor change: rounded off the end of the red vector for ''r''_⊥.
• 01:5001:50, 10 August 2010 diff hist +50 File:Areal velocity2.svg →Summary: fix internal links to Commons files
• 01:4801:48, 10 August 2010 diff hist +117 File:Areal velocity2.svg →Summary: fix italicization and add example of linear, unforced motion
• 01:4601:46, 10 August 2010 diff hist +573 N File:Areal velocity2.svg {{Information |Description={{en|1=Simplified version of Areal_velocity.svg showing that the area ''A'' is increasing linearly with time. Specifically, since ''A'' = ½ ''r''_⊥ ''vt'', its derivative dA/dt equals ½ ''r''<su
• 01:4001:40, 10 August 2010 diff hist +770 N File:Specific angular momentum.svg {{Information |Description={{en|1=Geometrical description of the specific angular momentum '''h''', whose magnitude ''h'' equals the speed ''v'' times ''r''_⊥, the component of the position vector '''r''' perpendicular to the velocity vecto

9 August 2010

• 03:5603:56, 9 August 2010 diff hist 0 File:Areal velocity.svg uploaded a new version of File:Areal velocity.svg: Improve treatment of image borders, otherwise unchanged.
• 03:5303:53, 9 August 2010 diff hist +765 N File:Areal velocity.svg {{Information |Description={{en|1=Figure used to depict the areal velocity, and the specific angular momentum ''h''. The latter equals r times v_φor, equivalently, v times r_perpendicular. The area ''A'' equals one-half times r_perpendicul
• 03:0203:02, 9 August 2010 diff hist +1,927 N File:Jacobi coordinates.svg {{Information |Description={{en|1=Jacobi coordinates are <math>boldsymbol{R}=frac {m_1}{M} boldsymbol{x}_1 + frac {m_2}{M} boldsymbol{x}_2 </math> and <math>boldsymbol{r} = boldsymbol{x}_1 - boldsymbol{x}_2 </math> with <math>M = m_1+m_2 </math>}} {{de|1

4 August 2010

• 01:4401:44, 4 August 2010 diff hist 0 File:Polar coordinate components.svg uploaded a new version of File:Polar coordinate components.svg: Nearly doubled the size of the fonts (from 40pt to 72pt). Increased space between trigonometric functions and their argument φ to (hopefully) avoid crowding seen at some resolutions
• 01:1201:12, 4 August 2010 diff hist +333 N File:Central force definition.svg {{Information |Description={{en|1=SVG image depicting an attractive central force, one that points from the body (shown in red) towards the origin '''O'''}} |Source={{own}} |Author=WillowW |Date=2010-08-03 |Permission= |other_versions= }}
• 01:0601:06, 4 August 2010 diff hist +5 File:Polar coordinate components.svg →Summary: italicize mathematical variable
• 01:0401:04, 4 August 2010 diff hist +380 N File:Polar coordinate components.svg {{Information |Description=SVG image showing a radius vector '''r''' broken down into Cartesian coordinates (r cos φ, ''r'' sin φ). |Source={{own}} |Date=3 August 2010 |Author= WillowW |Permission= |other_versions= }} [[Category:

2 July 2010

• 01:2901:29, 2 July 2010 diff hist +34 File:Marquise du Châtelet par Largillière.JPG principal category

30 June 2010

• 11:3911:39, 30 June 2010 diff hist 0 m File:Hoxne Hoard coin 2.JPG →Summary: typo

26 September 2008

• 17:1217:12, 26 September 2008 diff hist +43 m File:Hyperbola E.svg Quick-adding category "Hyperbola (rational function)" (using HotCat.js)
• 17:0817:08, 26 September 2008 diff hist +1 m File:Conjugate points and lines.svg Removed category "Circle geometry"; Quick-adding category "Poles and polars" (using HotCat.js)
• 17:0717:07, 26 September 2008 diff hist +1 m File:Pole and polar.svg Removed category "Circle geometry"; Quick-adding category "Poles and polars" (using HotCat.js)
• 17:0617:06, 26 September 2008 diff hist 0 m File:Poles and polars.svg Removed category "Circle inversion"; Quick-adding category "Poles and polars" (using HotCat.js)
• 17:0517:05, 26 September 2008 diff hist +583 N Category:Poles and polars new category
• 17:0117:01, 26 September 2008 diff hist −20 m File:Incidence poles polars.svg Quick-adding category "Poles and polars"; removed {{uncategorized}} (using HotCat.js)

24 September 2008

• 21:0521:05, 24 September 2008 diff hist +467 N File:Incidence poles polars.svg {{Information |Description={{en|1=Illustration of the duality of incidence of poles and polars. The polar ''q'' lies between two poles '''A''' and '''K''', whereas the pole '''Q''' is the intersection of the polars ''a'' and ''k''.}} |Source=Own work by
• 20:4320:43, 24 September 2008 diff hist +389 N File:Pole and polar.svg {{Information |Description={{en|1=Basic definition of a pole point '''Q''' and its polar line ''q'' with respect to a circle.}} |Source=Own work by uploader |Author=WillowW |Date=24 September 2008 |Permission= |other_versions= }} <!--{{I
• 20:4120:41, 24 September 2008 diff hist +394 N File:Conjugate points and lines.svg {{Information |Description={{en|1=If point '''A''' is on the line ''q'', then its pole '''Q''' is on the other's polar line ''a''.}} |Source=Own work by uploader |Author=WillowW |Date=24 September 2008 |Permission= |other_versions= }} <!

20 September 2008

• 02:3302:33, 20 September 2008 diff hist +24 m File:Cono - hipérbola.svg Quick-adding category "Hyperbolas" (using HotCat.js)
• 02:3202:32, 20 September 2008 diff hist +28 m File:Cono y secciones.svg Quick-adding category "Conic sections" (using HotCat.js)
• 02:2902:29, 20 September 2008 diff hist −6 m File:Elipsaj parametroj.svg Removed category "Conic sections"; Quick-adding category "Ellipses" (using HotCat.js)
• 02:2802:28, 20 September 2008 diff hist −6 m File:Conic ref syst.png Removed category "Conic sections"; Quick-adding category "Ellipses" (using HotCat.js)
• 02:2802:28, 20 September 2008 diff hist −6 m File:Comète 8.svg Removed category "Conic sections"; Quick-adding category "Ellipses" (using HotCat.js)
• 02:2702:27, 20 September 2008 diff hist −86 m File:Giperbola-ravnoboch.png Categories have been checked by User:WillowW
• 02:2602:26, 20 September 2008 diff hist −4 m File:Hiperbola.jpg Removed category "Conic sections"; Quick-adding category "Hyperbolas" (using HotCat.js)
• 02:2602:26, 20 September 2008 diff hist −82 m File:Giperbola-koord.png Categories have been checked by User:WillowW
• 02:2502:25, 20 September 2008 diff hist −4 m File:Giperbola-koord.png Removed category "Conic sections"; Quick-adding category "Hyperbolas" (using HotCat.js)
• 02:2402:24, 20 September 2008 diff hist −6 m File:Conicas2.PNG Removed category "Conic sections"; Quick-adding category "Parabolas" (using HotCat.js)
• 02:2402:24, 20 September 2008 diff hist −5 m File:Conicas3.PNG Removed category "Conic sections"; Quick-adding category "Hyperbolas" (using HotCat.js)
• 02:2302:23, 20 September 2008 diff hist −7 m File:Conicas1.PNG Removed category "Conic sections"; Quick-adding category "Ellipses" (using HotCat.js)
• 02:2302:23, 20 September 2008 diff hist −6 m File:Comète trajectoire 6.svg Removed category "Conic sections"; Quick-adding category "Ellipses" (using HotCat.js)