There are essentially three parameters preventing the proliferation of space travel outside of the purview of trained astronauts and a handful of ultra-wealthy space tourists. Of course, those would ...

In theory, Wankel-style rotary internal combustion engines have many advantages: they ditch the cumbersome crankcase and piston design, replacing it with a simple, single-chamber design and a thick, ...

The traditional piston engine has garnered the vast majority of attention and application in the internal combustion age, but there was another: the Wankel rotary engine. German engineer Felix Wankel ...

The piston engine may be the most common type of internal combustion engine found in consumer automotive vehicles. That doesn't mean it's the only option drivers have ever had access to. In the 1960s, ...