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

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How cold can a fire get?

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Sometimes water decreases friction (like when ice gets wet), and sometimes it increases friction (like using a damp towel to open a sticky jar lid). What determines the direction of this effect?

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Does pi contain every possible combination of numbers?

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Why don't humans have a mating season, or do we?

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Could elements heavier than 114 be produced naturally in blackholes or other sources of tremendous gravity?

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When you delete something off your hard disk drive, is the data in that area actually "zeroed out" or just designated as empty by your OS?

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Have any genetically engineered viruses ever spread outside laboratories into the population by accident?

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How do we know statistical sampling works? i.e. evidence for it

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With a fast enough camera could you be able to notice the time delay between the movement of an object and its reflection in a mirror?

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I learned today that the pineal gland calcifies over time. Why? And what can I do to stop or slow this down?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How cold can a fire get?	16
Sometimes water decreases friction (like when ice gets wet), and sometimes it increases friction (like using a damp towel to open a sticky jar lid). What determines the direction of this effect?	16
Does pi contain every possible combination of numbers?	16
Why don't humans have a mating season, or do we?	16
Could elements heavier than 114 be produced naturally in blackholes or other sources of tremendous gravity?	16
When you delete something off your hard disk drive, is the data in that area actually "zeroed out" or just designated as empty by your OS?	16
Have any genetically engineered viruses ever spread outside laboratories into the population by accident?	16
How do we know statistical sampling works? i.e. evidence for it	16
With a fast enough camera could you be able to notice the time delay between the movement of an object and its reflection in a mirror?	16
I learned today that the pineal gland calcifies over time. Why? And what can I do to stop or slow this down?	16