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/u/JarJarAwakens's posts in /r/askscience

Why do canaries show symptoms of poisonous gas before humans do, in the context of canaries in coal mines?

637 upvotes
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How do bugs not go extinct in an area after every freezing winter?

107 upvotes
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Is there a maximum​ amount of light that a black surface can absorb?

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If calluses are dead skin, why don't they suffer from gangrene?

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Why are some cell types more likely to be attacked by autoimmune diseases than others?

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What causes differences in virus longevity outside of the body?

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How are polymers bonded to each other in natural and synthetic fibers?

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Are halogen ions (Cl-, I-) toxic to microbes or is it just the elemental forms (Cl2, I2) ?

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Why can I faintly see the full circle outline of the moon when it is in crescent phase?

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How does kicking in swimming provide forward thrust?

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