Awair has launched the Glow C air quality monitor, which also functions as a smart plug. It plugs into a standard electric outlet and also has a pass-through outlet; it tracks chemicals, which could ...

Unless you have a diesel engine, you might not know about the glow plug. It takes the place of the spark plug but is responsible for warming the cylinders in a diesel motor. They are an essential ...

We may receive a commission on purchases made from links. Over the last century or so, the auto industry has changed in a myriad of incredible ways. It's mind-boggling to think of just how far we've ...

Posts from this author will be added to your daily email digest and your homepage feed. is an editor overseeing The Verge’s product reviews and service journalism programs. Dan has covered the ...

Abstract: The use of piston location to time the spark ignition in a free piston engine is problematic since piston travel is not defined and constrained by the crank and connecting rod but is a ...