Automobiles

Until recently, the automobile was one of the most universal and recognizable of modern technologies. Often referred to as cars, they are self-propelled vehicles intended for passenger transportation on land…

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Motorcycles

Motorcycles are powered by internal combustion engines, and can carry one or two riders. They are often categorized by their intended uses, engine sizes, and styles. They are sometimes used…

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What Is Development?

Development is the scientific study of change over time across multiple domains, including physical and neurophysiological processes, language, cognition, emotion, personality, morality and our relationships with others. The field is…

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