If your house has old, double-hung wood windows, chances are some of them don’t operate anymore. Or at least don’t operate well. Double sashes have a surprising number of parts, and when something ...

This month, our attention turns to the repair and energy efficiency improvement of wood windows. When you learn the different parts of a vintage window and how they operate, you can repair them to ...

Q: I didn’t pay much attention to the way double-hung windows worked, until one day when I lifted the sash higher than usual and heard a crashing sound. Turns out the windows were supported by a chain ...

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 ...