May 15 brings together two very different milestones in the history of invention. In 1718, English lawyer James Puckle patented the Puckle gun, an early form of machine gun and a precursor to the revolver. Its place on the calendar invites a look at how ideas for new devices can reshape familiar tools—and how the story of technology is not limited to one field or purpose.
A very different kind of scientific story begins in 1859, when French physicist Pierre Curie was born in Paris. He would later share the Nobel Prize in Physics with his wife, Marie, for their pioneering work on radioactivity. The events are separated by 141 years, yet both point to the drive to understand and extend what machines and matter can do. With May in the heart of spring in the Northern Hemisphere, the date also offers a small seasonal reminder: calendars hold both the cycles of the year and milestones from across centuries. Today’s pair moves from a patented device to a life in science, showing how varied the paths of discovery can be.