Credits

The images on the cube belong to their holders. They are shown small to identify the works I grew up on, and I will take any of them down on request: sahol@kronx.tech.

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Free licences

Public domain, CC0 and Creative Commons images, credited as each licence asks. I resized them to 512 pixels at most.

  • Malcolm Todd

    Malcolm Todd performing on stage, 2 April 2026

    Apwcow

    Photo: Apwcow, CC0

    Licence: CC0 1.0. Source: commons.wikimedia.org.

  • Robert Langdon stories

    Vitruvian Man (Uomo vitruviano)

    Leonardo da Vinci, c. 1490

    Leonardo da Vinci, c. 1490, public domain

    Licence: Public domain. Source: commons.wikimedia.org.

  • Science fiction

    Le voyage dans la lune, en plein dans l'oeil!! (drawing for A Trip to the Moon)

    Georges Méliès, 1902

    Georges Méliès, 1902, public domain

    Licence: Public domain. Source: commons.wikimedia.org.

  • Cyberdecks

    Framedeck, a cyberdeck PC built on a Framework mainboard

    Richard Sutherland

    Photo: Richard Sutherland, CC BY-SA 4.0

    Licence: CC BY-SA 4.0. Source: commons.wikimedia.org.

    Changes made: resized to 512 px on the long side and recompressed as JPEG. Shared under the same licence.

  • Brutalist and dystopian tech

    Trellick Tower, London

    Edwardx

    Photo: Edwardx, CC BY-SA 3.0

    Licence: CC BY-SA 3.0. Source: commons.wikimedia.org.

    Changes made: resized to 512 px on the long side and recompressed as JPEG. Shared under the same licence.

  • ESP32 and raw sensors

    ESP32-S3 development board on paper

    VectorVoyager

    Photo: VectorVoyager, CC BY-SA 4.0

    Licence: CC BY-SA 4.0. Source: commons.wikimedia.org.

    Changes made: resized to 512 px on the long side and recompressed as JPEG. Shared under the same licence.

  • Biomechanics and exoskeletons

    User walking in an EksoNR exoskeleton with a therapist

    AriceEB

    Photo: AriceEB, CC BY-SA 4.0

    Licence: CC BY-SA 4.0. Source: commons.wikimedia.org.

    Changes made: resized to 512 px on the long side and recompressed as JPEG. Shared under the same licence.

  • Eye physics

    Iris of a human eye, macro photograph

    Osmo Lundell

    Photo: Osmo Lundell, CC BY-SA 4.0

    Licence: CC BY-SA 4.0. Source: commons.wikimedia.org.

    Changes made: resized to 512 px on the long side and recompressed as JPEG. Shared under the same licence.

  • Astrophysics

    Pillars of Creation in the Eagle Nebula (Hubble WFC3, 2014)

    NASA, ESA and the Hubble Heritage Team (STScI/AURA)

    Image: NASA, ESA and the Hubble Heritage Team (STScI/AURA), public domain

    Licence: Public domain (NASA). Source: commons.wikimedia.org.

  • Rocket boosters

    Falcon Heavy side boosters landing on LZ-1 and LZ-2, 2018

    SpaceX

    Photo: SpaceX, CC0

    Licence: CC0 1.0. Source: commons.wikimedia.org.

  • Space telescopes

    James Webb Space Telescope mirror segments during cryogenic testing

    NASA/MSFC/David Higginbotham/Emmett Given

    Photo: NASA/MSFC/David Higginbotham/Emmett Given, public domain

    Licence: Public domain (NASA). Source: commons.wikimedia.org.

  • Teenage Engineering objects

    Teenage Engineering Pocket Operator

    Audiotecna Música

    Photo: Audiotecna Música, CC0

    Licence: CC0 1.0. Source: commons.wikimedia.org.

Copyrighted works, shown for identification

Album covers, game box art and manga covers, at low resolution, to show which work a tile means. Every one remains the property of the people named.

  • Aftermath

    Jed (album cover, 2021)

    Aftermath, alternative rock band from Dhaka, Bangladesh

    © 2021 Aftermath Bangladesh, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: music.apple.com.

  • Indalo

    Ekanto Golaap (single cover, 2024)

    Indalo, Bangladeshi rock band

    © 2024 Indalo, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: music.apple.com.

  • Kendrick Lamar

    DAMN. (album cover, 2017)

    Kendrick Lamar; Top Dawg Entertainment / Aftermath / Interscope

    © 2017 Aftermath / Interscope / Top Dawg Entertainment, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • Firoze Jong

    Ong Bong Chhong (single cover, 2020)

    Firoze Jong, Bangladeshi rock band; Elephant Records

    © 2020 Elephant Records, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: music.apple.com.

  • Radiohead

    In Rainbows (album cover, 2007)

    Radiohead

    © 2007 LLLP LLP / XL Recordings, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • Radiohead

    Kid A (album cover, 2000)

    Radiohead; cover art by Stanley Donwood and Thom Yorke

    © 2000 Parlophone / XL Recordings, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • Nirvana

    Nevermind (album cover, 1991)

    Nirvana; cover photograph by Kirk Weddle

    © 1991 Geffen Records, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • Hamilton (the musical)

    Hamilton: An American Musical, Original Broadway Cast Recording (cover, 2015)

    Atlantic Records; original Broadway cast of Hamilton

    © 2015 Hamilton Uptown LLC / Atlantic Records, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • EPIC (the musical)

    EPIC: The Troy Saga (Official Concept Album), cover

    Jorge Rivera-Herrans; Winion Entertainment

    © 2024 Winion Entertainment LLC, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • Tyler, the Creator

    IGOR (album cover, 2019)

    Tyler, the Creator; Columbia Records

    © 2019 Columbia Records / Sony Music Entertainment, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • Måneskin

    RUSH! (album cover, 2023)

    Måneskin; Epic Records

    © 2023 Epic Records / Sony Music Entertainment Italy, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • Evangelion

    Neon Genesis Evangelion, manga volume 1 (cover)

    Yoshiyuki Sadamoto; Kadokawa Shoten

    © Yoshiyuki Sadamoto / Kadokawa Shoten, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • Death Note

    Death Note, volume 1 (manga cover)

    Tsugumi Ohba (story), Takeshi Obata (art); Shueisha

    © Tsugumi Ohba, Takeshi Obata / Shueisha, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • The OK Computer cover

    OK Computer (album cover, 1997)

    Radiohead; cover art by Stanley Donwood and the White Chocolate Farm

    © 1997 Parlophone / XL Recordings, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • Cyberpunk

    Cyberpunk 2077 (box art)

    CD Projekt Red

    © CD Projekt, box art shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • Metro Exodus

    Metro Exodus (cover art)

    4A Games; Deep Silver

    © 4A Games / Deep Silver, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • Joji

    PIXELATED KISSES (single cover, 2025)

    Joji

    ℗ 2025 Palace Creek, distributed by Virgin Music, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: music.apple.com.

  • Kendrick Lamar

    To Pimp a Butterfly (album cover, 2015)

    Kendrick Lamar

    ℗ 2015 Aftermath/Interscope (Top Dawg Entertainment), cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: music.apple.com.

  • Nirvana

    In Utero, 20th Anniversary Edition (album cover, 2013)

    Nirvana

    A Geffen Records Release; ℗ 2013 UMG Recordings, Inc., cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: music.apple.com.

  • 1984

    Nineteen Eighty-Four (book cover)

    George Orwell (author); cover by the publisher

    Cover © its publisher, shown for identification

    Licence: All rights reserved (identification and commentary). Source: openlibrary.org.

  • Angels & Demons

    Angels & Demons (book cover)

    Dan Brown (author); cover by the publisher

    Cover © its publisher, shown for identification

    Licence: All rights reserved (identification and commentary). Source: openlibrary.org.

  • Zero to One

    Zero to One (book cover)

    Peter A. Thiel, Blake Masters (author); cover by the publisher

    Cover © its publisher, shown for identification

    Licence: All rights reserved (identification and commentary). Source: openlibrary.org.

  • Harry Potter

    Harry Potter and the Philosopher's Stone (book cover)

    J. K. Rowling (author); cover by the publisher

    Cover © its publisher, shown for identification

    Licence: All rights reserved (identification and commentary). Source: openlibrary.org.

  • Meditations

    Meditations (book cover)

    Marcus Aurelius (author); cover by the publisher

    Cover © its publisher, shown for identification

    Licence: All rights reserved (identification and commentary). Source: openlibrary.org.

  • The Odyssey

    The Odyssey (book cover)

    Ὅμηρος (author); cover by the publisher

    Cover © its publisher, shown for identification

    Licence: All rights reserved (identification and commentary). Source: openlibrary.org.

  • Atomic Habits

    Atomic Habits (book cover)

    James Clear (author); cover by the publisher

    Cover © its publisher, shown for identification

    Licence: All rights reserved (identification and commentary). Source: openlibrary.org.

  • Wings of Fire

    Wings of Fire (book cover)

    A. P. J. Abdul Kalam (author); cover by the publisher

    Cover © its publisher, shown for identification

    Licence: All rights reserved (identification and commentary). Source: openlibrary.org.

  • Tyler, the Creator

    Flower Boy (album cover, 2017)

    Tyler, The Creator

    ℗ 2017 Columbia Records, a Division of Sony Music Entertainment, as exclusive licensee, cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: music.apple.com.

  • Måneskin

    Teatro d'Ira - Vol. I (album cover, 2021)

    Måneskin

    ℗ A RCA release (P) 2021 Sony Music Entertainmnet Italy S.p.a., cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: music.apple.com.

  • Malcolm Todd

    Malcolm Todd (album cover, 2025)

    Malcolm Todd

    ℗ 2025 Columbia Records, a Division of Sony Music Entertainment, under exclusive license from Malcolm Todd, Inc., cover art shown for identification

    Licence: All rights reserved (identification and commentary). Source: music.apple.com.

  • Steve Jobs

    Steve Jobs (book cover)

    Walter Isaacson (author); cover by the publisher

    Cover © its publisher, shown for identification

    Licence: All rights reserved (identification and commentary). Source: books.apple.com.

  • Thinking, Fast and Slow

    Thinking, Fast and Slow (book cover)

    Daniel Kahneman (author); cover by the publisher

    Cover © its publisher, shown for identification

    Licence: All rights reserved (identification and commentary). Source: books.apple.com.

  • The Almanack of Naval Ravikant

    The Almanack of Naval Ravikant (book cover)

    Eric Jorgenson & Tim Ferriss (author); cover by the publisher

    Cover © its publisher, shown for identification

    Licence: All rights reserved (identification and commentary). Source: books.apple.com.

  • The Design of Everyday Things

    The Design of Everyday Things (book cover)

    Don Norman (author); cover by the publisher

    Cover © its publisher, shown for identification

    Licence: All rights reserved (identification and commentary). Source: books.apple.com.

  • The Art of War

    The Art of War (book cover)

    Sun Tzu (author); cover by the publisher

    Cover © its publisher, shown for identification

    Licence: All rights reserved (identification and commentary). Source: books.apple.com.

  • Interstellar

    Interstellar (theatrical poster)

    Paramount Pictures and Warner Bros. Pictures

    © 2014 Paramount Pictures and Warner Bros. Pictures, poster shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • The Odyssey (Nolan)

    The Odyssey (theatrical poster)

    Universal Pictures

    © 2026 Universal Pictures, poster shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.

  • Dead Poets Society

    Dead Poets Society (theatrical poster)

    Touchstone Pictures

    © 1989 Touchstone Pictures, poster shown for identification

    Licence: All rights reserved (identification and commentary). Source: en.wikipedia.org.