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Correct

Explanation

Stephen Hawking developed his theories of black holes and the boundary-condition of the universe at this period with his theory called Hawking radiation.

Solve this puzzle

Which triangle will have a larger perimeter: 3,4,5 or 3,4,7?

3,4,5 3,4,7 They’re equal Both are big

Fun Facts About Number 0 and 1

The Hindu-Arabic numeral system was invented almost eighteen hundred years ago; however, it turns out that we know too little about numerical digits we have been using to this day! Read the most awesome facts about “zero” and “one.”