Ford's consumer-level automotive engines are notable in their own right, but its high-end racing engines are extremely ...

It’s not likely to be ICE’s saving grace, but it’s still pretty cool.

A recent study led by Chinese scientists has challenged the hundreds-of-year-old myth that a heat engine can achieve both maximum power output and high efficiency. The approach defies the ...

In an ideal case, this process would be perfectly reversible and the Carnot engine would have maximum efficiency. In reality, real heat engines are not reversible and lose energy in the form of heat.

They're quite common, too. Super efficient, but tough to retrofit into a home, so best installed when you're building new. Duivenvoorden said mini-split heat pumps are the easiest to retrofit.

Since heat pumps are a relatively new technology, there are a lot of lingering misconceptions about them. An oft-repeated one is that they can't contend with very cold temperatures. However, an energy ...