User:John R. Brews/Miscellaneous: Difference between revisions

Latest revision as of 04:07, 22 November 2023

The account of this former contributor was not re-activated after the server upgrade of March 2022.

(PD) Image: John R. Brews

(CC) Image: John R. Brews & Aleksander Stos

Thirty-day moving average of edit activity on CZ. Data by Aleksander Stos.

(PD) Image: John R. Brews

Timeline for key scientists in classical mechanics

(PD) Image: John R. Brews

Number of articles on English Wikipedia vs. year. (Data from Wikipedia)

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Number of applicants for administrator privileges on English Wikipedia by year. (Data from Wikipedia

(PD) Image: John R. Brews

Number of new accounts per month on WP over its lifetime. (Data from Wikimedia.)

(PD) Image: John R. Brews

New articles per day on English Wikipedia. Average drop in production is 135/year. Data from Wikimedia

(PD) Image: John R. Brews

Number of English WP contributors making 100+ edits/month by year. Average drop is 93/year. Data from Wikimedia.

(PD) Image: John R. Brews

Blocks per day in 2012 on English Wikipedia. Data from Wikipedia.

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 |Blocks per day 2012.png|Blocks per day in 2012 on English Wikipedia. Data from [http://en.wikipedia.org/wiki/Special:BlockList Wikipedia].
-|Signal envelopes.png|Top and bottom envelope functions for a modulated sine wave.
-|Sawtooth Fourier series.png|First six terms of Fourier series for sawtooth.
-|Musical clefs.png|Musical clefs arranged on an 11-line ''grand staff''.
-|Sound envelope of a musical note.png|Envelope of a musical tone
-|Instrument spectra (A4-440Hz).png|Approximate spectrum of four instruments playing A4: 440 Hz
-|Even temperament.png|Comparison of even tempered notes with harmonics of ''C''2.
-|B♭ trumpet.png|A scale in concert pitch (top) and the scale transposed for the B♭ trumpet (bottom).
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