The Hoquiam Ruby story is almost lost to history, and may not be as complete as we thought. Join me as we learn about the history of America's first synthetic ruby venture, and the science of how rubies are made.
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Fig Leaf Rag by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. [ Ссылка ]
Atlantis by Audionautix is licensed under a Creative Commons Attribution 4.0 license. [ Ссылка ]
