I just saw G.I JOE - Retaliation. In the movie the bad guys (spoiler alert)
destroy London by dropping a large metal cylinder from space onto the city.
Could this device cause more destruction than a nuclear weapon? If so, how?
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Sometimes I am born in silence, Other times, no. I am unseen, But I make my presence known. In time, I fade without a trace. I harm no one, ...
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I want to know what happens to the space a black hole crosses over as our galaxy travels through space.
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