While most of us have been content with swing and sliding doors for the vast majority of our needs around the home, the revolving door remains popular in a wide variety of contexts. It’s a confounding ...

Austrian company Klemens Torggler have recently invented the "Evolution Door," a very cool new door that slides itself open/closed - without the use of tracks. A special system of rotating squares ...

Harvesting the kinetic energy generated by crowds of people is one of our favorite approaches to renewable energy. Recently Netherlands-based Natuurcafé La Port installed an energy generator in a ...