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Photo by - Glenn Beltz | CC BY

How Deep Can We Drill into the Earth?

When you think of the deepest hole drilled into the earth, the only thing that would pop in your mind would be the Russian Kola Superdeep Borehole. The Russian scientists drilled down the earth...

Photo by Mila Gutorova | CC BY

Can We Feel Gravity in Space?

Before going to the outer space, quick question! Do we feel gravity now? From an earthly standpoint, the answer is yes. But not really! What we feel is the contact reaction force of the...