Our expert, award-winning staff selects the products we cover and rigorously researches and tests our top picks. If you buy through our links, we may get a commission. Alan Bradley is an experienced ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Some of the many paths that can be taken through the mathematical space SO(3), corresponding to sequences of rotations in real space. Credit: Tsvi Tlusty. If you twist something — say, spin a top or ...

Imagine spinning a top and then letting it come to rest. Is there a way for you to spin the top again so it ends up in the exact position it started, as if you had never spun it at all? Surprisingly, ...

The world is filled with rotating objects—gyroscopes, magnetic spins, and more recently, qubits in quantum computers. For example, the atomic nuclei in our bodies precess at megahertz frequencies ...

Dimensions (mm) 339.50 x 228.50 x 17.70 390.00 x 266.00 x 26.75 Weight (kg) 1.45 2.7 ...

"For every trail that we were able to open, we saw a new business open up in town," says Jason McDougald, the camp's executive director. The collective had just completed the 21st mile (34th kilometer ...

OLD FORT, N.C. — Morning mist is still burning off the surrounding mountains when they appear: Small groups of helmeted riders on one-wheeled, skateboard-like contraptions, navigating the pitched ...