/u/[deleted]'s posts in /r/askscience

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does the earth travel the exact same orbit every year or does it change slightly?

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During the Carboniferous, O2 levels were 163% modern levels while CO2 was 800ppm. With so many plants, why were CO2 levels so high relative to modern levels?

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Why are there no clear metals?

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What would happen if the superheated material inside a fusion reactor was exposed?

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Are we travelling faster than the speed of light relative to matter outside of our observable universe?

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Does a single photon have an amplitude?

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Does a change in the curvature of space-time literally change the shape of a local object?

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Would a deaf person still sustain injuries from a sound at 120 decibals?

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Which country spends more? A cold one keeping warm, or a warm one cooling down?

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When xenotransplantation takes place, why don't the animal organs last as long as human ones?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
does the earth travel the exact same orbit every year or does it change slightly?	30
During the Carboniferous, O2 levels were 163% modern levels while CO2 was 800ppm. With so many plants, why were CO2 levels so high relative to modern levels?	30
Why are there no clear metals?	30
What would happen if the superheated material inside a fusion reactor was exposed?	30
Are we travelling faster than the speed of light relative to matter outside of our observable universe?	30
Does a single photon have an amplitude?	30
Does a change in the curvature of space-time literally change the shape of a local object?	30
Would a deaf person still sustain injuries from a sound at 120 decibals?	30
Which country spends more? A cold one keeping warm, or a warm one cooling down?	30
When xenotransplantation takes place, why don't the animal organs last as long as human ones?	30