April 30, 1777, birthday of the German geophysicists German Carl Friedrich Gauss.
He made significant contributions to the field of mathematics and statistics, but was also interested in practical applications. He developed a method to accurately measure the intensity of Earth's magnetic field at any given point.
@History_of_Geology @brunthal
He was also the guy who developed a very practical method to determine orbits from only three observations. I guess that means he was also an astronomer?
https://en.wikipedia.org/wiki/Gauss%27s_method
Gauss's method - Wikipedia

@rdrimmel
Maybe a polymath or 'Universalgelehrter' would be the right description?
@History_of_Geology
@brunthal @History_of_Geology
"Gauss chose the first names of his children in honour of Giuseppe Piazzi, Wilhelm Olbers, and Karl Ludwig Harding, the discoverers of the first asteroids."
Sounds like an astronomer to me.