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My Answered Questions
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Does every black hole contain a singularity?
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Good day! I am doing a small research to reduce the carbon dioxide from the environment caused by the transportation
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Does the influence of gravity extend out forever?
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Which lasers include a ruby laser, Nd: glass, Nd: three-level or four-level?
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How much does the sky weigh?
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Why is the sky blue?
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tell me three thing to make up a computer chips?
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tell me what material your reseaching now?
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how can you study about stars?