APPLICATION PHOTOGRAPH CREDITS

These photographs are used as cropped and resized WebP derivatives.

Batteries
"18650 and 21700 lithium ion battery cell" by Sevenethics.
CC0 1.0 Universal: https://creativecommons.org/publicdomain/zero/1.0/
Source: https://commons.wikimedia.org/wiki/File:18650_and_21700_lithium_ion_battery_cell.jpg

Semiconductors
"Silicon wafer" by Inductiveload.
Released into the public domain.
Source: https://commons.wikimedia.org/wiki/File:Silicon_wafer.jpg

Permanent magnets
"Neodymium magnet - 19-11-2010" by Tremaster.
Released into the public domain.
Source: https://commons.wikimedia.org/wiki/File:Neodymium_magnet_-_19-11-2010.JPG

Aerospace alloys
"Turbine blades" by Håkan Dahlström.
CC BY 2.0: https://creativecommons.org/licenses/by/2.0/
Source: https://commons.wikimedia.org/wiki/File:Turbine_blades_(5195404673).jpg

Fertilisers
"An Indian farmer spreading fertilizer over a crop" by Kiran Kumar.
CC BY-SA 2.0: https://creativecommons.org/licenses/by-sa/2.0/
Source: https://commons.wikimedia.org/wiki/File:An_Indian_farmer_spreading_fertilizer_over_a_crop.jpg