Researchers design and test a waste-heat recovery system, illustrated here, that attaches to a car tailpipe and converts heat from exhaust into energy. The fanned grooves on the outside of the pipe ...

A hack which suggests using wax paper to keep your bathroom fan from getting choked with dust has been making the rounds online. Does it actually work?

it’s important to confirm that the head gasket is indeed the issue. Common signs include: White smoke from the exhaust. Milky oil, indicating coolant mixing with engine oil. Overheating engine.

But one startup featured at CES this week has produced a battery made of paper, believe it or not. Flint’s paper battery is poised to provide a more sustainable and affordable alternative to ...

This is where "paper trading" comes in handy. Instead of buying stocks with real money, paper trading simply means that you game out your investing strategy with fake money and track your results.