Podcasts > Kategorie: Wissen und Wissenschaft > Kanal: BrainStuff

What do those diamond-shaped signs on buildings mean?

Kategorie: Wissen und Wissenschaft
Kanal: BrainStuff
Datum: 9. Juli 2014, 22:08
Stufe: B1-B2 (Mittelstufe)

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The National Fire Protection Agency, or NFPA, uses these signs to indicate hazardous materials stored in an unknown building. Listen in to learn how the signs work -- and how they help firefighters -- in this podcast from HowStuffWorks.com.