/u/T0ma5reddit's posts in /r/askscience

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Could a person survive a fall from the sky at terminal velocity if they assumed the 'dive' position and landed in water?

775 upvotes

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How can something (such as an electronic device) be waterproof for only a certain length of time?

20 upvotes

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Assume I'm travelling at 30mph in my car. If I accelerate to 60mph by maintaining 100% throttle am I using the same amount of fuel as if I were to slowly but steadily increase my speed to 60mph by using just 50% throttle?

3 upvotes

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Seesaw in space a light year long, what would happen if one person each end moved their side down at the same time?

1 upvotes

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Why does everything in the universe seem so static?

1 upvotes

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There's a giant, unbreakable sea-saw in space 1 light year across. Each side of the sea-saw can be 'locked into place' in the lower position using an unbreakable padlock. What would happen if a person either side of the sea-saw locked their side down at the same time?

1 upvotes

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If I exhale slowly into my hands, my breath is warm yet if I exhale quickly (i.e. blow), my breath is cold. Why is this?

1 upvotes

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If an astronaut conducting a spacewalk outside the ISS suddenly push themselves towards earth whilst wearing a parachute, could they land safely?

1 upvotes

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Seesaw in space question.

1 upvotes

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Why does something like a chocolate bar melt in a hot car but something like a loaf of bread doesn’t?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Could a person survive a fall from the sky at terminal velocity if they assumed the 'dive' position and landed in water?	775
How can something (such as an electronic device) be waterproof for only a certain length of time?	20
Assume I'm travelling at 30mph in my car. If I accelerate to 60mph by maintaining 100% throttle am I using the same amount of fuel as if I were to slowly but steadily increase my speed to 60mph by using just 50% throttle?	3
Seesaw in space a light year long, what would happen if one person each end moved their side down at the same time?	1
Why does everything in the universe seem so static?	1
There's a giant, unbreakable sea-saw in space 1 light year across. Each side of the sea-saw can be 'locked into place' in the lower position using an unbreakable padlock. What would happen if a person either side of the sea-saw locked their side down at the same time?	1
If I exhale slowly into my hands, my breath is warm yet if I exhale quickly (i.e. blow), my breath is cold. Why is this?	1
If an astronaut conducting a spacewalk outside the ISS suddenly push themselves towards earth whilst wearing a parachute, could they land safely?	1
Seesaw in space question.	1
Why does something like a chocolate bar melt in a hot car but something like a loaf of bread doesn’t?	1