User:John R. Brews/Miscellaneous

(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.

{{Gallery-mixed |width=200 |lines=3 |Classical mechanics timeline.PNG|Timeline for key scientists in classical mechanics

|WP Articles.png|Number of articles on English Wikipedia vs. year. (Data from Wikipedia)

|Applicants for adminship.png|Number of applicants for administrator privileges on English Wikipedia by year. (Data from Wikipedia

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

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

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

|Blocks per day 2012.png|Blocks per day in 2012 on English Wikipedia. Data from 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 C2.