Revolving doors are an essential part of many public and commercial buildings, famous for their efficiency and energy-saving properties. However, there is an ongoing debate about the optimal opening direction of these doors: should they open to the left or to the right? This discussion has both practical and safety implications and touches on various aspects of building design and user experience.
An endless loop of time in which the same day or period is repeated over and over is a popular theme in science fiction and fantasy. Usually the focus is on the main character trapped in the time loop and his or her struggle to break out. But what happens to the secondary characters in this time loop? While they may not be aware of the repetition, there may still be practical drawbacks for those supporting in this situation.
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