Alexander Dallas Bache (1806-1867) was an American scientist and educator who made notable contributions in the fields of surveying, mathematics, and geophysics. He was born in Philadelphia, Pennsylvania, and was the great-grandson of Benjamin Franklin.
Bache was known for his extensive work in the area of coastal and geodetic surveying. He served as the second Superintendent of the United States Coast Survey, a position he held from 1843 until his death. During his tenure, he greatly advanced the precision and accuracy of surveying methods, laying the foundation for the modern mapping and charting of the United States.
Furthermore, Bache was a prominent educator and held several academic positions throughout his career. He served as the president of Girard College in Philadelphia, where he dedicated himself to improving the education and welfare of orphaned children. Bache was also a professor of natural philosophy and chemistry at the University of Pennsylvania.
In addition to his surveying and educational accomplishments, Bache made significant contributions to the field of geophysics. He conducted studies on the Earth's magnetic field and developed a network of magnetometer stations across the United States. His research helped advance the understanding of geomagnetism and laid the groundwork for future studies in this field.
Alexander Dallas Bache's work left a lasting impact on scientific research and education in the United States. His dedication to improving surveying methods, advancing education, and expanding scientific knowledge has solidified his place as a noteworthy figure in American scientific history.
