While modern engines feature many tweaks and improvements on the original ideas, they usually aren't as interesting as the strange contraptions engineers experimented with in the early days. Take, for ...

Click to open image viewer. Power rating: 75 kW (100 hp) at 1,200 rpm Displacement: 12.8 L (783.27 cu in.) Bore and Stroke: 110 mm (4.33 in.) x 150 mm (5.91 in.) The first successful rotary engine is ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

Add Yahoo as a preferred source to see more of our stories on Google. While modern engines feature many tweaks and improvements on the original ideas, they usually aren't as interesting as the strange ...