Sarah Aucoin was in high spirits as she stepped on to the ascending escalator at Boston’s Back Bay station a few minutes ...

People could notice a subtle warning sign that they have a lifelong condition every time they step on a set of stairs or an escalator ... walking up and down stairs writing, drawing and using ...

His design, called the “revolving stairs,” was quite ... and another for guiding them back down. This creates a continuous loop that the steps ride. Some Escalators Show their Inner Workings ...

Escalators are mesmerizing to watch ... bottom each stair’s free end rests on a ‘bottom’ far enough down for the stairs to be level, while on the incline the ‘bottom’ is just below ...