Explore December 17 science history with students: the Wright brothers’ first powered flight in 1903, the discovery of nuclear fission in 1938, and chemist Humphry Davy’s birth in 1778. Connect aviation to forces and engineering, fission to atomic structure and energy, and Davy’s work to electrolysis and mine safety. Discover 132 STEM events in the December Science on This Day HTML, slides, spreadsheet and printable PDF set.