Science Article of the Week: Avoiding Pedestrians With the Help of Lasers

Hanyoung Lee wants you to be seen. The South Korea-based product designer devised a prototypical warning device to prevent pedestrian strikes along roadway crosswalks. It's called the Virtual Wall, a visual barrier created from plasma laser beams. The system casts larger-than-life images of pedestrians in eye-grabbing red across the roadway, at a location where such peds are likely to be crossing. Popular Science 28 April 2008

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