Search Result For deepest
The day people reached the deepest place on Earth – level 1
23-01-1960It is the beginning of 1960. Two men are preparing for...
The day people reached the deepest place on Earth – level 2
23-01-1960At the beginning of 1960, two men were preparing for a...
The day people reached the deepest place on Earth – level 3
23-01-1960At the beginning of 1960, above the Mariana Trench in the...
The day people started to make the deepest hole – level 1
24-05-1970The deepest hole made by people is in Russia. The name...
The day people started to make the deepest hole – level 2
24-05-1970The deepest hole ever drilled is called the Kola Superdeep Borehole....
The day people started to make the deepest hole – level 3
24-05-1970The deepest hole ever drilled is called the Kola Superdeep Borehole....
The day the longest railway tunnel was opened – level 2
01-06-2001The longest railway tunnel in the world is in Switzerland. Its...
The day the longest railway tunnel was opened – level 3
01-06-2001The Gotthard Base Tunnel is in Switzerland and it runs under...