Andrija Mohorovicic

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Noun1.Andrija Mohorovicic - Yugoslav geophysicist for whom the Mohorovicic discontinuity was named (1857-1936)
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Reaching the boundary between the Earth's crust and mantle, named for Croatian seismologist Andrija Mohorovicic, would allow scientists to peer directly into the Earth's innards, providing new insight into the planet's makeup and history and informing controversial ideas about continental drift.
In the twentieth century, a number of scientists, notably Richard Oldham (an Englishman, 1858-1936), Andrija Mohorovicic (a Croatian, 1857-1936), Inge Lehman (a Danish, 1888-1993), and Beno Guetenberg (a German, 1889-1960), studied seismic waves and used their travel times and paths to unravel the structure of the Earth's interior.
One of the first results was the discovery that the ocean crust appeared to present a consistent, layered seismic structure composed of sediments (layer 1 at the seafloor) followed by two layers with rapidly increasing sound velocity, and then a reflector, dubbed the Moho after the its discoverer, a Czechoslovakian seismologist named Andrija Mohorovicic.