Harley-Davidson endures as one of the biggest names in motorcycles, which didn't come easily for the company. After all, there's more to selling motorcycles than plucking them out of thin air and ...

If you look at aircraft from the Second World War or earlier, you'll notice that many of them have engines with large frontal areas and cylinders arranged about the propeller crankshaft. This a radial ...

As the automotive propulsion industry shifts toward electrification, the last-of-breed combustion engines are a stultifyingly similar bunch, focused around the same CAD-optimized 500cc cylinder ...