The FHP Student Essay Contest received a record number of entrants in 2019, with submissions from 4 continents and essay writers ranging from high school students to graduate students. The winning essay “A Changing Dichotomy: The Conception of the ‘Macroscopic’ and ‘Microscopic’ Worlds in the History of Physics” was submitted by Zhixin Wang, a graduate student in applied physics at Yale University. Wang's essay examines scientists' shifting views on the what distinguishes micro and macro over four centuries, from 17th century hypotheses of hidden mechanical mechanisms as explanations for visible phenomena to more contemporary distinctions where it is not size, but quantum metrics that are often appealed to. For winning the contest Mr. Wang will receive a cash award of $500 cash award for her work. Both essays are posted on the FHP's website at https://www.aps.org/units/fhp/essay/index.cfm