From Wikipedia, the free encyclopedia
    Wikipedia-logo-v2-en.svgThis user is one of the 100 most active English Wikipedians of all time.
    This editor is Grand Gom, the Highest Togneme of the Encyclopedia and is entitled to keep the floor plan of The Great Library of Alecyclopedias, including its ancient access keys.
    Dick Lyon, in the Long Room of the Trinity College, Dublin, library, admiring Brian Boru's harp, 2017

    Hi, I'm Dick Lyon. I am a research scientist/engineer in Silicon Valley, California. I've been contributing to Wikipedia since May, 2005.

    Some of my work outside Wikipedia is linked on my ancient techie home page More recent research pubs are found here. And don't forget my always-popular Otis King pages, from 1997.

    And now I'm an author; so buy my book (or see my book blog to access a free online copy) if you're interested in Human and Machine Hearing.

    My contributions are mostly related to photography, photometry, color, electronics, and signal processing. And in recent years, mostly photos and style gnoming. And creeks.


    I just noticed that I've received about twice as many WP:THANKs as I've given, so I'm going to try to be more appreciative going forward, and give more. Dicklyon (talk) 16:03, 31 October 2021 (UTC)

    I'm particularly grateful whenever someone reverts a mistake I made, so I always thank those! Dicklyon (talk) 23:30, 9 July 2022 (UTC)

    I've reduced the discrepancy to more like 4:3 in the last year. That feels better. Dicklyon (talk) 09:20, 26 March 2023 (UTC)

    Articles created[edit]

    People bios[edit]

    Technical stuff[edit]

    Creeks and other bodies of water[edit]

    Other stuff[edit]

    Pictures added[edit]

    Here I collect most of the pictures I've uploaded, mostly my own, but including some public domain images and photos licensed by a few friends.

    I uploaded over 100 photos in 2017, and well over 100 in 2018, about 300 in 2019, and somewhat fewer in 2020 and 2021 with reduced travel. Several big trips in 2022, and so far down under in 2023.

    2023 down under[edit]

    Pyrmont and the Inner West[edit]


    New Zealand[edit]

    Back in Sydney[edit]

    Cairns, Queensland[edit]

    Hobart, Tasmania[edit]



    December, Sydney, New South Wales[edit]


    July/August Copenhagen/Paris trip[edit]

    Aerials from this trip[edit]

    Southern Africa safari and Cape Town[edit]

    Aerials from Africa trip[edit]

    Other 2022 uploads[edit]



    Some of my dead friends and relatives.

    More people[edit]

    Photography and optics[edit]

    Photometry and colorimetry[edit]

    Electronics and signal processing[edit]

    Panorama of the Very Large Array, New Mexico, December 2017

    Math, science, engineering[edit]

    Creeks, rivers, lakes, reservoirs, bays[edit]

    Aerial view of the Yampa River in northern Colorado, November 2017
    Panorama of the Hetch Hetchy aqueduct, December 2016