contact wheel
131energy conversion — ▪ technology Introduction the transformation of energy from forms provided by nature to forms that can be used by humans. Over the centuries a wide array of devices and systems has been developed for this purpose. Some of these energy …
132Outline of automobiles — The following outline is provided as an overview of and topical guide to automobiles: Automobile (or motor car) – wheeled passenger vehicle that carries its own motor. Most definitions of the term specify that automobiles are designed to run… …
