The engine that almost killed Mazda — and why it’s still alive today

The internal combustion engine, for all its mechanical sophistication, still runs on a 19th-century mechanical idea: pistons ...
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How the Mazda RX-8 saved the rotary engine

How weird and wonderful is the rotary engine, with its rebellious "why can't we do it like this" approach to automotive engineering? The rotary represents a compact, smooth, and quite mechanically ...

The World's Weirdest Rotary Engine Is A 118-Year-Old French Spinner That Leaks Castor Oil Everywhere

Wankel rotary engine powered thousands of aircraft. One of several problems: It spewed castor oil on its pilots.