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• Shadowgraph - Wikipedia, the free encyclopedia

  Shadowgraph is an optical method that reveals non-uniformities in transparent media like air, water, or glass. It is related to, but simpler than, the schlieren and schlieren ...

• umbral glow

• shadowgraph - Definition of shadowgraph at YourDictionary.com

  The word usage examples above have been gathered from various sources to reflect current and historical usage. They do not represent the opinions of YourDictionary.com.