The defining characteristic of a two-stroke engine is to fire (combust) every time the piston is at top dead center. This makes them highly power dense, but also notoriously makes two-stroke engines ...

Less recognized has been the impact of the air we breathe indoors, even though we spend about 90% of our time inside, says ...

The back of the F22 Raptor has an unusual characteristic -- rectangular nozzles. It turns out they have a very specific ...

A Code Orange Air Quality Action Day has been issued for parts of the Pittsburgh area on Thursday.

Trump signed measures Thursday revoking waivers for the state's mandates that clean up car and truck exhaust and ramp up ...

Trump signed measures on Thursday revoking waivers for the state’s mandates that clean up car and truck exhaust and ramp up ...

The plane’s operating costs are a jaw-dropping $130,000 per hour—largely because of its unique and labor-intensive ...

Geometric Future's Model 5 Vent case breaks the boxy mold with mesh panels, five 140mm ARGB fans, and great value at an ...

An Air Quality Action Day will be in effect Thursday for Johnson County.

Built by coachbuilder Karmann only t a few years before the company folded in 2010, the Polo GTI Cabrio was never intended as a showroom model, but it wasn’t just a fanciful design study either. The ...

Trump signed measures today revoking waivers for the state’s mandates that clean up car and truck exhaust and ramp up sales of electric vehicles. California and 10 other states immediately sued and ...

Despite a measure targeting noisy vehicles not making it past the finish line this session, supporters say they’re sticking with it.