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Science Archive
Why are Cigarettes More Addictive Nowadays?
Do substances added to cigarettes make them more addictive?
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Ask the expert
What would happen to an astronaut who leaves his spacecraft with an oxygen bottle but not wearing his space suit?
In answering this question, most science fiction films depict gory scenes in which the human body resembles a balloon blowing up
February 25, 2012 זמן קריאה משוער 7
