에피소드 2013년 7월 12일 3분 18s

What exactly is a blueprint?

출처 BrainStuff iHeartPodcasts

Blueprinting, which has been around since 1842, is a common way to reproduce an architectural drawing. Tune in to learn more about the complex chemical processes that make blueprints blue -- and white -- in this podcast from HowStuffWorks.com.

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