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How the Virtual First-Down Line Works by Brain Stuff | Mixes.VuiZ.Net
How the Virtual First-Down Line Works
By
Brain Stuff
Tags:
#Howstuffworks
#Brainstuff
#Virtual first down line
#First down
#Football
How the Virtual First-Down Line Works
Brain Stuff
0:00
0:00
Description
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.
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