Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

These decades-old engines outlast modern ones — and anyone can fix them.

BMW is rethinking long-range power in its electric vehicles. BMW may add range-extender gas engines to large electric vehicles like the i7 and iX5. EREVs appeal to drivers wanting battery power plus ...

Small internal combustion engines usually keep things simple, relying on carburetors to handle metering the correct amount of fuel and air. Recently, [Carlos Takeshita] decided his small engine could ...