When Tom Blake took a stabilizing fin off a motorboat and bolted it to the bottom of his hollow surfboard at Waikiki in 1935, he set in motion a fascinating process of development and refinement that ...

When humans started riding surfboard-type vehicles towards the shore, whether it was in Hawaii or Peru, those first wave-riding craft were finless. The boards were simply pointed towards the shoreline ...

Unless you’re an expert in hydrodynamics, you’re probably confused about fins. You might know about flex and rake and drag – if you don’t, here’s a crash course – but do you really understand why ...