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Title: Auto Escalator - Only on during use View count: 50 Rating: 0 (0 ratings) Description: What a great way to save a lot of energy. Most of the escalators in the states, are just always on. In Berlin, at the convention center, the escalators turn on as you approach them. It seems so simple, why don't all escalators do this? Tags: escalator, green, Author: scottcate |
