Add Yahoo as a preferred source to see more of our stories on Google. A graphical representation of what a real Gerver’s sofa might look like. If you’ve ever struggled to squeeze a couch around a ...

Mathematicians aren't usually the first point of call on moving day. And really, why should they be? For nearly 60 years, they couldn't even tell you whether your fancy new three-seat sofa would make ...

In a scene from the classic sitcom, "Friends," the characters Ross, Rachel and Chandler struggle to heft a new couch up the stairs of their apartment building. As they try to get the sofa around the ...

A mathematician has solved a decades-old puzzle. Jineon Baek proved a specific shape is the largest that can turn a corner.