Kola Superdeep Borehole
The Kola Superdeep Borehole (Russian:
Кольская
сверхглубокая
скважина
, romanized: Kol'skaya sverkhglubokaya skvazhina) SG-3 is the result of a scientific...
22 KB (2,279 words) - 22:16, 23 April 2024