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

From Citizendium
Jump to navigation Jump to search
imported>John R. Brews
No edit summary
imported>John R. Brews
No edit summary
Line 27: Line 27:
|Blocks per day 2012.png|Blocks per day in 2012 on English Wikipedia. Data from [http://en.wikipedia.org/wiki/Special:BlockList Wikipedia].
|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.jpg|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).
|Musical notation.png|Some elements of musical notation.
|Tuning error.png|Error in playing a note of specified pitch.
}}
}}

Revision as of 13:30, 15 July 2012

Frequencies of various pure tones. The various A-notes are a factor of two apart in frequency.
(PD) Image: John R. Brews
Thirty-day moving average of edit activity on CZ. Data by Aleksander Stos.
(CC) Image: John R. Brews & Aleksander Stos
Thirty-day moving average of edit activity on CZ. Data by Aleksander Stos.
Timeline for key scientists in classical mechanics
(PD) Image: John R. Brews
Timeline for key scientists in classical mechanics
Number of articles on English Wikipedia vs. year. (Data from Wikipedia)
(PD) Image: John R. Brews
Number of articles on English Wikipedia vs. year. (Data from Wikipedia)
Number of applicants for administrator privileges on English Wikipedia by year. (Data from Wikipedia
(PD) Image: John R. Brews
Number of applicants for administrator privileges on English Wikipedia by year. (Data from Wikipedia
Number of new accounts per month on WP over its lifetime. (Data from Wikimedia.)
(PD) Image: John R. Brews
Number of new accounts per month on WP over its lifetime. (Data from Wikimedia.)
New articles per day on English Wikipedia. Average drop in production is 135/year. 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
Number of English WP contributors making 100+ edits/month by year. Average drop is 93/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.
Blocks per day in 2012 on English Wikipedia. Data from Wikipedia.
(PD) Image: John R. Brews
Blocks per day in 2012 on English Wikipedia. Data from Wikipedia.
Retrieved from "https://citizendium.org/wiki/index.php?title=User:John_R._Brews/Miscellaneous&oldid=761528"