Most homeowners are familiar with the spring hinge. You find them on cabinet doors, entry doors and even garage doors. They ensure the door swings shut after you open it and that it doesn’t remain ...

Nobody wakes up hoping their overhead door decides to quit. Yet thousands of homeowners face exactly that scenario every year ...

Q: The heavy door that leads from my house into the garage doesn’t close by itself anymore. What’s wrong with it? A: You have a hinge problem on your fire door, which is required to have a ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...