Brainstuff
How the Virtual First-Down Line Works
- Author: Vários
- Narrator: Vários
- Publisher: Podcast
- Duration: 0:03:23
- More information
Informações:
Synopsis
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://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.