Cartoonist Rube Goldberg creates a little animation to explain how fuel is converted to power in the modern automobile engine. he first half is much better as Rube shows us his idea for a "door-open-upper" and shows us s Pattent for a device called the "Hat Tipper" and thiers even a part at the end where one of his machines seemingly breaks down.An entertaining piece of propaganda/subtle advertising for its time, and another damning piece of evidence against the gas and auto industry. They were obviously threatened by hydro electric power, which would reduce the need for gas generated power and gasoline, and so set out to subtley influence the public's opinion on hydroelectric power.