# Image credits

Free archive images used on this site (keep this file; show the credits on the site).

- `01-001-2020-04-21-uhren-fuer-den-innenbereich.jpg`: 001 2020 04 21 Uhren fuer den Innenbereich.jpg — Friedrich Haag. CC BY-SA 4.0. Wikimedia Commons: https://commons.wikimedia.org/wiki/File:001_2020_04_21_Uhren_fuer_den_Innenbereich.jpg
- `02-mn-ii-kompleksi-monokoristall.jpg`: Mn(II) kompleksi monokoristall.jpg — Verner Sääsk. CC BY 4.0. Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Mn(II)_kompleksi_monokoristall.jpg
- `03-psm-v16-d033-molecular-phosphorescence-and-shado.jpg`: PSM V16 D033 Molecular phosphorescence and shadows.jpg — Unknown author Unknown author. Public domain. Wikimedia Commons: https://commons.wikimedia.org/wiki/File:PSM_V16_D033_Molecular_phosphorescence_and_shadows.jpg
- `04-psm-v16-d034-phosphorescence-of-shadows-and-pola.jpg`: PSM V16 D034 Phosphorescence of shadows and polarity switch.jpg — Unknown author Unknown author. Public domain. Wikimedia Commons: https://commons.wikimedia.org/wiki/File:PSM_V16_D034_Phosphorescence_of_shadows_and_polarity_switch.jpg
- `05-psm-v16-d030-phosphorescence-of-potash-molecules.jpg`: PSM V16 D030 Phosphorescence of potash molecules.jpg — Unknown author Unknown author. Public domain. Wikimedia Commons: https://commons.wikimedia.org/wiki/File:PSM_V16_D030_Phosphorescence_of_potash_molecules.jpg
- `06-phosphorescence.jpg`: Phosphorescence.jpg — Lưu Ly. Public domain. Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Phosphorescence.jpg
- `07-microflash-quartz-phosphorescence.jpg`: Microflash-quartz-phosphorescence.jpg — Niels Noordhoek. CC BY-SA 3.0. Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Microflash-quartz-phosphorescence.jpg
- `08-shadow-wall-after.png`: Shadow Wall - after.png — Bigmacthealmanac. CC BY-SA 4.0. Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Shadow_Wall_-_after.png