At some point in your life, you've probably come across a transom window. They've been around for some seven centuries, after all—and they continue to be popular today. Once you figure out what a ...

This old-home feature isn’t going anywhere anytime soon Also known as transom lights, transom windows are a popular home feature that has gained even more traction in recent years. We’re willing to ...

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 ...