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

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If liquid helium is the coldest substance we have commercially available to us today, how did we first cool helium down to that temperature without the use of something colder?

103 upvotes

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Why do some chemical reactions need catalysts (such as potassium permanganate), and what does the catalyst do if it is not used up?

5 upvotes

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Is there a point with superheavy elements where the outermost valence electrons will be too far away from the protons of the nucleus to be held in their shells?

4 upvotes

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When you cut a loaf of bread, what happens to the chemical bonds at the site of the cut?

4 upvotes

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When I taste something containing dissolved salt, am I tasting the sodium ion, the chlorine ion or a combination of both?

1 upvotes

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I just dropped my phone in the toilet, and now it's in a bag of desiccant. How does desiccant on the outside of the phone pull the water from the inside into it when it is separated by the phone's shell?

1 upvotes

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When it rains at the beach, how much does the water coming down affect the depth of the ocean?

1 upvotes

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Let's say I have a car that can go the speed of light. I reach the speed of light, but keep pressing down the gas to go faster. What happens?

1 upvotes

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Why do large dogs have much shorter lifespans than small dogs?

1 upvotes

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Will chimpanzees ever evolve and create civilization?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If liquid helium is the coldest substance we have commercially available to us today, how did we first cool helium down to that temperature without the use of something colder?	103
Why do some chemical reactions need catalysts (such as potassium permanganate), and what does the catalyst do if it is not used up?	5
Is there a point with superheavy elements where the outermost valence electrons will be too far away from the protons of the nucleus to be held in their shells?	4
When you cut a loaf of bread, what happens to the chemical bonds at the site of the cut?	4
When I taste something containing dissolved salt, am I tasting the sodium ion, the chlorine ion or a combination of both?	1
I just dropped my phone in the toilet, and now it's in a bag of desiccant. How does desiccant on the outside of the phone pull the water from the inside into it when it is separated by the phone's shell?	1
When it rains at the beach, how much does the water coming down affect the depth of the ocean?	1
Let's say I have a car that can go the speed of light. I reach the speed of light, but keep pressing down the gas to go faster. What happens?	1
Why do large dogs have much shorter lifespans than small dogs?	1
Will chimpanzees ever evolve and create civilization?	1