If you’ve been keeping an eye on electric motorcycles of late, you will surely have heard of Verge's hubless e-moto sporting a donut-shaped rear wheel. It divides opinions: most folk either love it or ...

Regular roller blades go way back, relying on a number of wheels mounted in a line and relying on regular bearings. [The Q] came up with an altogether more interesting design by handcrafting some tall ...