Image credits

The photos on this website come from Wikimedia Commons and Openverse (including Flickr) under free licenses and have been processed in a consistent style.

We are grateful to the authors for the opportunity to use their work. All photos have been converted to monochrome and toned (these are derivative works); for images licensed under CC BY-SA, the derivative versions are distributed under the same terms.

Virginia Tech - data center.jpg Author: Christopher Bowns License: CC BY-SA 2.0 Wikimedia Commons ↗
Control room of BESSY II, 2025-06-28.jpeg Author: Nylki License: CC0 Wikimedia Commons ↗
Diagnostic monitors in the control room of Wendelstein 7-X.jpg Author: Siarhei Besarab License: CC BY-SA 4.0 Wikimedia Commons ↗
Cable tray with cables.jpg Author: Santeri Viinamäki License: CC BY-SA 4.0 Wikimedia Commons ↗
Cable ladder01.jpg Author: Leotard License: CC BY-SA 3.0 Wikimedia Commons ↗
Wire cable tray02.jpg Author: Leotard License: Public domain Wikimedia Commons ↗
PROCESS PIPING IN THE PROPULSION SYSTEMS LABORATORY EQUIPMENT BUILDING PSLEB AND THE ICING RESEARCH TUNNEL IRT - DPLA - 0a80e9892e54a2bd5c8d3fe839da1887.jpg Author: Martin Brown License: Public domain Wikimedia Commons ↗
CONSTRUCTION AT THE COMBUSTION AIR HEATER AND PROCESS PIPING - NARA - 17427192.jpg Author: Martin Brown License: Public domain Wikimedia Commons ↗
Abdali District Energy Plant.jpg Author: IncrentaWiki License: CC BY-SA 4.0 Wikimedia Commons ↗
Automatic Fire Sprinkler Systems, Brisbane, 2021.jpg Author: Kgbo License: CC BY-SA 4.0 Wikimedia Commons ↗
Fire sprinkler roof mount side view.jpg Author: Brandon Leon License: CC BY-SA 2.0 Wikimedia Commons ↗
FM-200 fire suppression system at NERSC.jpg Author: Derrick Coetzee from Berkeley, CA, USA License: CC0 Wikimedia Commons ↗
Smoke detector, Russia (3).JPG Author: Georg Pik License: CC0 Wikimedia Commons ↗
Downloading software on to the Fire Control Panel of a sub-station located in Queens. (CS179, 01-22-2019) (46906375001).jpg Author: MTA Capital Construction Mega Projects License: CC BY 2.0 Wikimedia Commons ↗
Saugzuggebläse Biomasseheizkraftwerk Baden.JPG Author: Ulrichulrich License: CC BY-SA 3.0 Wikimedia Commons ↗
Duisburg, Landschaftspark Duisburg-Nord, Kühlwerk -- 2024 -- 4277.jpg Author: Dietmar Rabich License: CC BY-SA 4.0 Wikimedia Commons ↗
Teknisk rom (School build. Lilleh. Norway 2024-09. Mechan. room Air ventil. Hot water Heat recov. unit) Hovedfordeler Varmeanlegg Ventilasjon Isolerte rør kanaler varmtvannsbereder aggregat vifte el-tavle stige elkabler vask lagring e.jpg Author: Wolfmann License: CC BY-SA 4.0 Wikimedia Commons ↗
Teknisk rom (School build. Lilleh. Norway 2024-09. Mechan. room Air ventil. Hot water Heat recov. unit) varmtvann isolerte rør målere termometere sirkulasjonspumpe strupeventil radiatorer gulvvarme elkabler vannkran etc IMG 0306.jpg Author: Wolfmann License: CC BY-SA 4.0 Wikimedia Commons ↗
M1M3 Cabinet Delivery to CAID (rubin-20180518-101345).jpg Author: Rubin Observatory/NSF/AURA License: CC BY 4.0 Wikimedia Commons ↗
Electrical Distribution (22789278665).jpg Author: Carl Lender from Sunrise, USA License: CC BY 2.0 Wikimedia Commons ↗
Musée du tramway de Porto 17.jpg Author: René Hourdry License: CC BY-SA 4.0 Wikimedia Commons ↗
Interior of the derelict Strood Pumping Station (24).png Author: Burn22093 License: CC BY-SA 4.0 Wikimedia Commons ↗
Turnstiles outside of the new South Stand, Headingley Stadium, Leeds (23rd May 2020).jpg Author: Mtaylor848 License: CC BY-SA 4.0 Wikimedia Commons ↗
Octopus Card Access Control.JPG Author: me (cychk) License: CC BY-SA 4.0 Wikimedia Commons ↗
Security camera, September 2018.jpg Author: Cody Logan License: CC BY-SA 4.0 Wikimedia Commons ↗
CCTV cameras in Mumbai.jpg Author: Punit Rajpal License: CC0 Wikimedia Commons ↗
NOIRLab HQ Server Racks (6V6A0404-CC).jpg Author: NOIRLab/NSF/AURA/T. Slovinský License: CC BY 4.0 Wikimedia Commons ↗
AMS-IX optical patch panel.jpg Author: Fabienne Serriere License: CC BY-SA 3.0 Wikimedia Commons ↗
AMDExtravaLANzaToronto9.jpg Author: Raysonho @ Open Grid Scheduler / Grid Engine License: CC0 Wikimedia Commons ↗
Printed Circuit Board 9990.jpg Author: Ashley Pomeroy License: CC BY 4.0 Wikimedia Commons ↗
Printed Circuit Boards in a sheet.jpg Author: Gabriela P. License: CC BY 4.0 Wikimedia Commons ↗
Mediq Utrecht Data center Gwan Kho Author: Gwan Kho License: CC BY-SA 2.0 Flickr ↗
Data Center Network Core Author: motleypixel License: CC BY 2.0 Flickr ↗
Data center Author: seeweb License: CC BY-SA 2.0 Flickr ↗
Data center Author: seeweb License: CC BY-SA 2.0 Flickr ↗
Data Center Author: stan License: CC BY-SA 2.0 Flickr ↗
Data Center Author: Cory M. Grenier License: CC BY-SA 2.0 Flickr ↗
Datacenter @ Night Author: Arthur40A License: CC BY-SA 2.0 Flickr ↗
Armadi IBM in datacenter Author: Tophost License: CC BY-SA 2.0 Flickr ↗
Temperatura armadio datacenter Author: Tophost License: CC BY-SA 2.0 Flickr ↗
An undisclosed Datacenter Author: simon.carr License: CC BY-SA 2.0 Flickr ↗
Microsoft Bing Maps' datacenter Author: Robert Scoble License: CC BY 2.0 Flickr ↗
datacenter 007 Author: renegade.black License: CC BY-SA 2.0 Flickr ↗
Server room at CERN Author: torkildr License: CC BY-SA 2.0 Flickr ↗
Server room Author: torkildr License: CC BY-SA 2.0 Flickr ↗
Server room Author: torkildr License: CC BY-SA 2.0 Flickr ↗
Centaur server room Author: viagallery.com License: CC BY 2.0 Flickr ↗
NDL Server Room taking shape Author: jblyberg License: CC BY 2.0 Flickr ↗
Server Room - New Dells Author: david.dolphin License: CC BY 2.0 Flickr ↗
CGRB server room Author: Shawn T. O'Neil License: CC BY 2.0 Flickr ↗
Server room Author: torkildr License: CC BY-SA 2.0 Flickr ↗
Server Room Author: SparkFunElectronics License: CC BY 2.0 Flickr ↗
Full Sail Motion Capture Studio: Server Racks Close-Up Author: dylanroscover License: CC BY-SA 2.0 Flickr ↗
Server Racks.. Author: Y a T R a License: CC BY 2.0 Flickr ↗
Full Sail Motion Capture Studio: Server Racks Close-Up Author: dylanroscover License: CC BY-SA 2.0 Flickr ↗
Network Rack Author: one individual License: CC BY-SA 2.0 Flickr ↗
Data storm Author: Herkie License: CC BY-SA 2.0 Flickr ↗
Switch! Author: andrewfhart License: CC BY-SA 2.0 Flickr ↗
P1000985 Author: Ronnie Garcia License: CC BY-SA 2.0 Flickr ↗
IMAG0191 Author: Jemimus License: CC BY 2.0 Flickr ↗
Cabling Author: XcBiker License: CC BY-SA 2.0 Flickr ↗
No. 10 is important! (99/365) Author: Lars P. License: CC BY 2.0 Flickr ↗
P1000208 Author: Ronnie Garcia License: CC BY-SA 2.0 Flickr ↗
Voice Patch Panel - Rear Author: dmitrybarsky License: CC BY 2.0 Flickr ↗
cables Author: br1dotcom License: CC BY 2.0 Flickr ↗
Network switch and cables Author: nayukim License: CC BY 2.0 Flickr ↗
Foundry RX-16 with six racks of MRJ21 cables Author: vaxomatic License: CC BY 2.0 Flickr ↗
telecom closet cable management (fisheye) Author: ChrisDag License: CC BY 2.0 Flickr ↗
Cable Management Dell 1950 Author: ShakataGaNai License: CC BY-SA 3.0 Wikimedia ↗
cable management Author: marsupium photography License: CC BY-SA 2.0 Flickr ↗
Fiber Optic cable upgrade Author: Wesley Fryer License: CC BY-SA 2.0 Flickr ↗
Corning fiber optic cable Author: Wesley Fryer License: CC BY-SA 2.0 Flickr ↗
fiber optic cable Author: sparr0 License: CC BY-SA 2.0 Flickr ↗
Newly installed pull box equipped with inner ducts and Fiber Optic Cables in the Plaza Facilities Room. (CS179, 03-20-2018) Author: MTA C&D - EAST SIDE ACCESS License: CC BY 2.0 Flickr ↗
Splicing and tagging Fiber Optic Cables in a control system cabinet in the B11 Substation. (CS179, Author: MTA C&D - EAST SIDE ACCESS License: CC BY 2.0 Flickr ↗
Movimento merci / Freight trains control room Author: Luigi Rosa License: CC BY-SA 2.0 Flickr ↗
Advanced Test Reactor control room simulator Author: Idaho National Laboratory License: CC BY 2.0 Flickr ↗
Day 25: Fire Sprinkler Author: kaoticsnow License: CC BY-SA 2.0 Flickr ↗
Fire Sprinkler Heads Author: Flavio~ License: CC BY 2.0 Flickr ↗
Fire Sprinkler Author: HomeSpot HQ License: CC BY 2.0 Flickr ↗
CS179 PLZF (Emergency Exit) - Installation of Fire Sprinkler Pipes in Utility Chase (07-11-2017) Author: MTA C&D - EAST SIDE ACCESS License: CC BY 2.0 Flickr ↗
CM014B - Installing 4-inch Fire Sprinkler Piping by Corridor (10-14-2016) Author: MTA C&D - EAST SIDE ACCESS License: CC BY 2.0 Flickr ↗
CM014B - Installation of Fire Sprinkler (06-01-2016) Author: MTA C&D - EAST SIDE ACCESS License: CC BY 2.0 Flickr ↗
CM013 - Electrician Installing Phone Wires for Fire Alarm Panel in Water Feature Room (08-08-2014) Author: MTA C&D - EAST SIDE ACCESS License: CC BY 2.0 Flickr ↗
Abstracts - a smoke detector Author: R/DV/RS License: CC BY 2.0 Flickr ↗
smoke detector (05-04-08) Author: sun dazed License: CC BY-SA 2.0 Flickr ↗
Smoke detector Author: Tumi-1983 License: CC BY-SA 3.0 Wikimedia ↗
light and smoke detector Author: psflannery License: CC BY 2.0 Flickr ↗
Smoke Detector Author: HomeSpot HQ License: CC BY 2.0 Flickr ↗
Captain Smoke Detector Author: rkelland License: CC BY-SA 2.0 Flickr ↗
Abandoned Pumping Station Author: darkday. License: CC BY 2.0 Flickr ↗
Methane gas pumping station Author: Distraction Limited License: CC BY 2.0 Flickr ↗
Interior of Musselburgh Pumping Station Author: Dunedin City Council Archives License: Public domain Flickr ↗
Pipes & Valves Author: Dawn Endico License: CC BY-SA 2.0 Flickr ↗
Pipes Valve Author: Little Visuals License: CC0 Stocksnap ↗
water pipe valve Author: Aqua Science Arizona License: CC BY-SA 2.0 Flickr ↗
Gas Author: Chris Hunkeler License: CC BY-SA 2.0 Flickr ↗
Pipes Author: flattop341 License: CC BY 2.0 Flickr ↗
08. Inside Pump Train Author: MTAPhotos License: CC BY 2.0 Flickr ↗
Plumb crazy Author: Elsie esq. License: CC BY 2.0 Flickr ↗
Factory Author: Mr. Littlehand License: CC BY 2.0 Flickr ↗
suspicious electrical panel Author: h080 License: CC BY-SA 2.0 Flickr ↗
Identifying and terminating wires in electrical panels in a power substation Queens. 06-26-19 Author: MTA C&D - EAST SIDE ACCESS License: CC BY 2.0 Flickr ↗
KC-97 Stratotanker Electrical Panel Author: brewbooks License: CC BY-SA 2.0 Flickr ↗
Testing an electrical panel in a power sub-station located in Queens. (06-12-2019) Author: MTA C&D - EAST SIDE ACCESS License: CC BY 2.0 Flickr ↗
Testing switch gears in an electrical panel in a newly energized power substation. 07-09-2019 Author: MTA C&D - EAST SIDE ACCESS License: CC BY 2.0 Flickr ↗
Connecting cables in an electrical panel for the tunnel ventilation fan. 06-20-19 Author: MTA C&D - EAST SIDE ACCESS License: CC BY 2.0 Flickr ↗
Great CCTV camera on the Great Wall of China, Beijing, China 1.JPG Author: gruntzooki License: CC BY-SA 2.0 Flickr ↗
Dome CCTV cameras Author: KRoock74 License: CC BY-SA 3.0 Wikimedia ↗
Single CCTV camera Author: Ben Sutherland License: CC BY 2.0 Flickr ↗
Broken CCTV Camera Author: adamxp12 License: CC BY 2.0 Flickr ↗
National Sealife Centre Birmingham - Penguin Ice Adventure - CCTV camera Author: ell brown License: CC BY-SA 2.0 Flickr ↗
Lithgow Small Arms Factory Interior Author: Aussie~mobs License: Public domain Flickr ↗
factory interior, CT Author: Todd Kopriva License: CC BY 2.0 Flickr ↗
Industrial fan close-up Author: Outpost 51 License: CC BY 2.0 Flickr ↗
Industrial fan close-up Author: Outpost 51 License: CC BY 2.0 Flickr ↗
Steampunk Oamaru 2011 Author: Alpat License: CC BY-SA 2.0 Flickr ↗
Machine Author: bark License: CC BY 2.0 Flickr ↗
industrial Author: elise.y License: CC BY 2.0 Flickr ↗