/u/sloposaurus's posts in /r/askscience
If cracking our knuckles are air bubbles escaping the joints, then where does that air come from and where does it go?
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Why is the menopausal process encoded in our DNA to begin at around age 50 for women when early humans generally didn’t even live that long?
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Why do organizations seeking extra terrestrial life primarily search for radio waves when encountering possible alien anomalies (ex. the recent “Oumuamua” object). Wouldn’t it be more likely that aliens would use another form of communication? Shouldn’t we broaden our search?
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Are you more likely to get a sunburn sitting next to the window on a plane than walking outside on a sunny day?
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