Imagine trying to design a key for a lock that is constantly changing its shape. That is the exact challenge we face in ...

We can tie knots in three dimensions because one-dimensional ropes “catch on each other”. This is why a long rope wound around itself, if done right, won’t come apart. We trust knots with our lives ...

Duo Transcend, the acrobat rollerskaters who wowed on 'America's Got Talent,' bring their dizzying act to halftime shows, ...