Christine Ruff’s husband, Justin Ruff, built a backyard ice rink in Arnold that their three daughters have been skating on this week. According to Christine, “He has a construction background, and ...

The original version of this story appeared in Quanta Magazine. The reason we can gracefully glide on an ice-skating rink or clumsily slip on an icy sidewalk is that the surface of ice is coated by a ...

Common household waste, like sawdust and used coffee grounds, can make effective salt substitutes. Sand and cat litter can increase traction on slippery surfaces when salt is not available. Improve ...

[CLIP: Skates cut across the ice at an ice rink, and music plays in the background.] Kendra Pierre-Louis: So we’re out here today in lower Manhattan ice-skating. There are lots of kids skating around, ...