Croatian seismologist and meteorologist

Croatian seismologist and meteorologist, Andrija Mohorovicic was the first one to suggest the existence of a boundary surface separating the crust of the earth from the underlying mantle. This layer, which is 5 mi (8 km) deep under the oceans and about 20 mi (32 km) deep under the continents in average, was later named the Mohorovicic discontinuity. In 1970, a large crater on the far side of the Moon was also named in Mohorovicic's honor.

Mohorovicic was born on in Volosko, now in Croatia. After spending his early school years in Volosko, then Rijeka, he studied physics and mathematics at the Faculty of Philosophy, in Prague. In 1882, he started his nine-year carrier in the Nautical School in Bakar teaching meteorology, and beginning his scientific work. A few years later, in 1887, he founded a meteorological station in Bakar.

In 1891, Mohorovicic transferred to Zagreb, and in...