Alfred Wegener

Biography

Alfred Lothar Wegener was born in Berlin on November 1, 1880, during a time of rapid scientific progress in Germany. He studied at Humboldt University in Berlin, where he gained knowledge in astronomy, meteorology, and climatology. In 1905, he completed his doctoral dissertation on astronomical observations, but soon shifted his focus to meteorology and polar research. Early in his career, he joined a Danish expedition to Greenland from 1906 to 1908, which helped establish him as a skilled polar researcher and meteorologist.

In 1912, Wegener proposed his groundbreaking theory of continental drift, suggesting that continents moved across the Earth's surface over geological time. This idea came from his observations that continental coastlines, such as those of South America and Africa, seemed to fit together, along with similarities in fossils and rock formations found across oceans. He detailed these concepts in his key work "Die Entstehung der Kontinente und Ozeane" (The Origin of Continents and Oceans) in 1915, revising and expanding it through several editions until 1929.

Despite the geological evidence he provided, Wegener's theory of continental drift met strong resistance from established geologists, who argued he lacked a convincing explanation for how continents could move through the solid oceanic crust. At that time, prevailing theories supported the idea that Earth's structure was more static, making Wegener's ideas seem radical and unsupported. His background in meteorology rather than geology also caused skepticism among geologists.

Throughout his career, Wegener continued his meteorological and polar research, leading several expeditions to Greenland to study atmospheric patterns. He married Else Köppen, the daughter of well-known climatologist Wladimir Köppen, in 1913, and received the Carl Ritter Medal that same year for his accomplishments in geography. His last expedition to Greenland in 1930 aimed to set up permanent weather stations, but Wegener died during the mission in November 1930, likely from a heart attack while traveling across the ice.

Wegener's ideas gained support decades after his death with the rise of plate tectonic theory in the 1960s. The discoveries of seafloor spreading, paleomagnetism, and mapping of mid-ocean ridges provided the missing explanations for continental movement. By combining evidence from geology, paleontology, climatology, and geography, Wegener was ahead of his time in using insights from various areas of Earth science to reveal important planetary processes.