One of the first steam engines — dubbed the Newcomen engine ... In 1769, military engineer Nicolas-Joseph Cugnot created a steam-powered tractor. These vehicles didn't need to constantly ...

Would you believe me if I told you the U.S. military had the option to field a hybrid-electric tank more than a century ago?

At the turn of the twentieth century as the first internal combustion engine powered tractors were being developed, farmers had been using horses for motive power for centuries. Steam power was no ...