Similar
![Government discovers method to preserve [...] (3) Test for fading. D. Levinsky of the Bureau of Standards is pictured exposing a developed film to light from a carbon arc to find whether the photographic image fades. The carbon-arc light simulates daylight closely and therefore is used for many materials as a standard source of illumination for this purpose, 7/8/38](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTUvMTEvMjUvZ292ZXJubWVudC1kaXNjb3ZlcnMtbWV0aG9kLXRvLXByZXNlcnZlLTMtdGVzdC1mb3ItZmFkaW5nLWQtbGV2aW5za3ktb2YtdGhlLTY0MC5qcGc%3D/40/32/webp "Government discovers method to preserve [...] (3) Test for fading. D. Levinsky of the Bureau of Standards is pictured exposing a developed film to light from a carbon arc to find whether the photographic image fades. The carbon-arc light simulates daylight closely and therefore is used for many materials as a standard source of illumination for this purpose, 7/8/38")
Related
C-141 KAO: CAT experiment - Damage Compressor ARC-1980-AC80-0389-21
Summary
C-141 KAO: CAT experiment - Damage Compressor
Public domain photograph of NASA experimental aircraft development, free to use, no copyright restrictions image - Picryl description
Tags
Date
30/04/1980
Source
NASA
Copyright info
Public Domain Dedication (CC0)
