#225 What is the Kola borehole?
I learned this today. The Kola borehole is the deepest manmade borehole on Earth, and it is the deepest artificial point on Earth. The Kola borehole is on the Kola…
I learned this today. The Kola borehole is the deepest manmade borehole on Earth, and it is the deepest artificial point on Earth. The Kola borehole is on the Kola…