Classrooms might feel a bit more like Perez's machine than tidy rows of desks, said Gerald Wheeler, interim executive director of the National Science Teachers Association.
Metric is by far the best and most consistent for the world's scientists and engineers and it often appeals also to those who are tidy-minded, who like the idea that life is run according to ordered principles.
Like most true stories, the beginning isn't tidy, but we'll start in the 1920s when the idiom top of the world was first used as an advertising catch phrase.
