We describe a compelling motion illusion elicited by a huge billboard placed along a street, depicting a building that contains strong perspective cues. When observers move fast along the opposite sidewalk, they perceive the depicted building as rotating in their direction of travel. This is a special case of the 'following', or 'pointing out of the picture', illusion that elicits a strong illu...

C ollecting and visualizing accessibility information are always challenging problems within the realm of Human-Computer Interaction (HCI). A team of researchers at the University of Maryland have proposed innovative approaches that combine crowdsourcing, computer vision and machine learning to detect and visualize how accessible a particular street or sidewalk is. Tohme is one such approach fo...

It would be a lot easier to enjoy your life if there weren't so many things trying to kill you every day. The problems start even before you're fully awake. There's the fall out of bed that kills 600 Americans each year. There's the early-morning heart attack, which is 40% more common than those that strike later in the day. There's the fatal plunge down the stairs, the bite of sausage that get...

Purpose Our purpose was to investigate the interplay between runners and their environment using a network approach. Methods This cross-sectional study sampled Brazilian of both sexes, from five macro-regions country. An electronic questionnaire used obtain information regarding age, sex, training volume, socio-economic level, place residence, running pace. Environmental indicators (public illu...

Just as matchings represent a certain type of fundamental structure, so do shortest paths. For example, consider observations of people walking through their neighborhood from home to work. A natural model of these observations is that people have a cost function for traversing sections of road or sidewalk that depend on features such as length, scenery, crowdedness, or safety. To get between t...

Buildings have an impact on the environment at a macroscale in terms of the resources that they use. But they also have an impact in the microclimate of their immediate surroundings. One such building is the Walt Disney Concert Hall, designed by Frank Gehry. It is a landmark, scintillating building, in more ways than one. Occupants of surrounding buildings have complained of elevated temperatur...