Triangles geodesiques de Méchain et Arago

Pierre François André Méchain and Dominique-François-Jean Arago were not directly involved in geodesic triangle measurements, but their work was closely related. Méchain, along with Jean-Baptiste Joseph Delambre, measured a portion of the Earth's meridian in the late 18th century, creating geodesic triangles to accurately determine the Earth's size and shape. Arago, though not directly involved in these measurements, played a crucial role in popularizing and documenting Méchain and Delambre's work.

Méchain and Delambre's measurements laid the foundation for the metric system, with the meter as a standardized unit of length. Arago's biography of Méchain helped raise awareness of their significant contributions to science. Together, they contributed to the advancement of metrology and the establishment of the metric system.