Power-slurping signs

Tuesday, April 26, 2011 - 16:30 in Mathematics & Economics

Every eight seconds, the message changed. Drivers whizzing by on I-95 in Northeast Philadelphia might have seen an ad for American Idol, which then flashed to ones for a Sixers game, a Target sale, 95.7 Ben-FM, and a Lenovo laptop - "so fast it's obscene!"

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