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WTF were they thinking! 9 comments
jimcrichton
· 9 years ago
Google worst idea ever.... this.
Quite Helpful 5 comments
jimcrichton
· 9 years ago
More/Less vs Fewer/Greater: More/Less refer to a quantity of something that cannot be counted. Fewer/Greater refer to a quantity of items that can be counted. ie. "15 items or less" is properly stated "15 items or fewer".
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Tales from the IT Office of a lady 10 comments
No sister, not today 10 comments
Let's learn more about sushi! 6 comments
All shall praise He 11 comments
jimcrichton
· 9 years ago
He is everywhere (the second most abundant element in the universe after Hydrogen)
in the heavens and Earth (mostly in the "heavens")
He makes the stars shine (fuel for nuclear fusion, along with Hydrogen)
yet He cannot be seen (Helium is a colorless gas)
He is noble, abundant, (Helium belongs to the group of noble gases)
and fills the universe. (see above)
He can lift you into the sky (Helium is less dense than Earth's atmosphere, see blimp)
and bring you gently down. (if you have enough ballast)
He can take many forms. (I disagree, Helium doesn't participate in any known chemical reactions)
He can help heal, (Helium is needed to cool the superconducting magnets in MRI machines)
He can help kill. (Helium can displace air and cause suffocation in sufficient amounts)
He can help create, (create heavier elements in a star, see fusion fuel)
He can help destroy. (potential, if impractical, fuel for fusion bombs)
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in the heavens and Earth (mostly in the "heavens")
He makes the stars shine (fuel for nuclear fusion, along with Hydrogen)
yet He cannot be seen (Helium is a colorless gas)
He is noble, abundant, (Helium belongs to the group of noble gases)
and fills the universe. (see above)
He can lift you into the sky (Helium is less dense than Earth's atmosphere, see blimp)
and bring you gently down. (if you have enough ballast)
He can take many forms. (I disagree, Helium doesn't participate in any known chemical reactions)
He can help heal, (Helium is needed to cool the superconducting magnets in MRI machines)
He can help kill. (Helium can displace air and cause suffocation in sufficient amounts)
He can help create, (create heavier elements in a star, see fusion fuel)
He can help destroy. (potential, if impractical, fuel for fusion bombs)
All shall praise He 11 comments
jimcrichton
· 9 years ago
There is a global shortage of Helium. The US government sets the price of Helium artificially. If the price were left to the free market no one could afford to use it for balloons. Helium is far more valuable for cryogenic applications in scientific research and the medical field. Liquid Helium is needed to cool the superconducting magnets in life-saving MRI machines and in science-and-medicine-advancing Nuclear Magnetic Resonance (NMR) spectrometers.
The problem is that Helium doesn't react with anything and it's so light that it diffuses right out of Earth's atmosphere. The only source of Helium is from electron capture by alpha particles produced by radioactive decay. Thus, Helium is usually only found on Earth mixed with natural gas in subterranean deposits near radioactive minerals.
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·
Edited 9 years ago
The problem is that Helium doesn't react with anything and it's so light that it diffuses right out of Earth's atmosphere. The only source of Helium is from electron capture by alpha particles produced by radioactive decay. Thus, Helium is usually only found on Earth mixed with natural gas in subterranean deposits near radioactive minerals.
Please take your top off 10 comments
Police in Turkey try to stop Pride parade with water cannons, accidentally creates rainbow 8 comments
Sunglasses shaped like a country 16 comments
jimcrichton
· 9 years ago
Why indeed? That is possibly the least practical thing I have ever seen.
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This is the cause of popping in your knuckles 9 comments
jimcrichton
· 9 years ago
It's called cavitation. When there are localized low pressure areas in a liquid some of the liquid flash boils and creates a bubble. (Liquids boil at lower temperatures under low pressure, that's why there are different cooking instructions for high altitudes where the air pressure is lower.) In the case of synovial fluid it's more likely to be dissolved gases coming out of solution rapidly (as a bubble) than the fluid itself boiling, but it's still considered cavitation.
Incidentally, synovial fluid (the stuff human joints are filled with) is the best liquid lubricant known to man (lowest coefficient of friction).
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Incidentally, synovial fluid (the stuff human joints are filled with) is the best liquid lubricant known to man (lowest coefficient of friction).
Went fishing but caught deer instead 6 comments
When ya mom buy off brand cereal 22 comments
Future generation love stories 4 comments
If only 6 comments
jimcrichton
· 9 years ago
End career politics and prevent corruption by instating Congressional term limits.
Stop abusing the Commerce Clause to try to control everything (poorly).
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Stop abusing the Commerce Clause to try to control everything (poorly).
I've probably started war 26 comments
jimcrichton
· 9 years ago
In the case of a gun, yes. But this statement demonstrates a profound misunderstanding of biochemistry. Also, it's easier to stop one cell from its journey than tens of millions.
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