/r/askscience
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What experiment would resolve tough questions in your field but can't be performed due to ethical considerations?
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Does being an active and outdoorsy child influence the body's development in terms of body shape, muscles and so on?
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Our solar system is orbiting the center of the galaxy at 483,000 mph. What kinds of relativistic effects do we experience because of this, and do we have to take them into account when studying other galaxies/stars?
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