Add Yahoo as a preferred source to see more of our stories on Google. Thanit Weerawan / Getty Images There are dozens of different types of rope, each with its own strengths and weaknesses. So, ...

So are two middle-aged mechanical engineers at Princeton. Jeffrey Aristoff, a post-doctoral researcher, and professor Howard Stone have been researching the physics of jumping rope since last spring, ...

A mammoth ivory tool unearthed in central Europe has offered a peek at how teamwork enabled Stone Age folks to make thick, sturdy ropes. Excavations and sediment screening at southwestern Germany’s ...