Podcasts > Kategorie: Wissen und Wissenschaft > Kanal: BrainStuff

How the Virtual First-Down Line Works

Kategorie: Wissen und Wissenschaft
Kanal: BrainStuff
Datum: 2. März 2009, 19:00
Stufe: B1-B2 (Mittelstufe)

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Virtual first down lines are used to indicate where play resumes in football -- but how do they work? Listen in as Marshall Brain explains how the technology superimposes a virtual line in this podcast on HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers