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Old 02-13-2018, 04:04 PM   #1569
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Meteorological fact: Clouds at altitude contain four times as much water vapor per cubic foot of air as does fog near ground level, and the water vapor in clouds is at a below-freezing temperature, so it's actually "ice" vapor. Fog and clouds are not the same thing.
I doubt that's true. There is no such thing as ice vapor. Except at the triple point, 32.01F.
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Old 02-13-2018, 04:15 PM   #1570
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Rubbish? rm', are you a consumer of rubbish? Does your mother know? Indeed!

But, back to clouds and fog—the clouds are above Grand Junction, just like us, a measly half mile above the teeming city. Go to GJ, look up and see clouds. We look down on them often. When they balloon upward as they run into Grand Mesa and are narrowed down between the cliffs on each side (higher across from us), they envelop us, so we are in the clouds that look exactly like fog. Clouds and fog here are a lot dryer than elsewhere because of the desert. As for "ice vapor", just like "military intelligence", though perhaps Italian Ice Vapor would be tasty.

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Old 02-13-2018, 04:15 PM   #1571
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i like ice vapor in my scotch,
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Old 02-13-2018, 04:17 PM   #1572
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I learned my lesson not to question Protag the engineer. Propane tanks vs propane cylinders if I recall. That's the problem with engineers... their ''technically'' right most of the time.
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Old 02-13-2018, 04:28 PM   #1573
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Thought engineers drove trains.
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Old 02-13-2018, 04:41 PM   #1574
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Thought engineers drove trains.
Engineer: A person who designs, build, or maintains engines, machines, or public works. Synonyms; originator, deviser, designer, architect, inventor, developer, creator, mastermind?........ Mastermind was hard for me to write.
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Old 02-13-2018, 04:46 PM   #1575
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Engineer: A person that starts with grand concepts and produces MAJOR malfunctions.

NB: I am one of those people....and Murphy was an optimist.
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Old 02-13-2018, 05:19 PM   #1576
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I learned my lesson not to question Protag the engineer. Propane tanks vs propane cylinders if I recall. That's the problem with engineers... their ''technically'' right most of the time.
Well they are both pressure vessels after all. The only difference is their mobility.

It's less a matter of engineering and more a feat of nomenclature and regulatory authority.
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Old 02-13-2018, 05:32 PM   #1577
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Well they are both pressure vessels after all. The only difference is their mobility.

It's less a matter of engineering and more a feat of nomenclature and regulatory authority.
Yes Mark. Protag enlighten me that propane tanks are permanently mounted, and cylinders were removable. At what age do we become know it alls again? It seems the more I know, the less I know.
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Old 02-13-2018, 05:45 PM   #1578
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I doubt that's true. There is no such thing as ice vapor. Except at the triple point, 32.01F.
You are of course correct. That's why I put "ice vapor" in quotation marks, to show its dubious veracity. Sub-freezing water vapor is still water vapor. Until it clumps together to make ice particles such as hail or snowflakes instead of clumping together to make drops of water.

I was trying to create a mental picture for people without a science background. Should have known that there are too many people here who DO have science backgrounds!

But it IS true that clouds at altitude do contain about 4 times as much water vapor per cubic foot than low-altitude fog.
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Old 02-13-2018, 05:46 PM   #1579
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Is the tank not a cylinder too?

Is this one of those, "All bourbons are whiskeys, but not all whiskeys are bourbons" thing?

While we are at it, why do we drive on a parkway but park in a driveway?
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Old 02-13-2018, 05:50 PM   #1580
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Originally Posted by markdoane View Post
I doubt that's true. There is no such thing as ice vapor. Except at the triple point, 32.01F.

Sooo, there is such a thing as ice vapor?
I'm more of a "if you can't fix it with a hammer, you've got an electrical problem" kind of guy.

I also happen to know the difference between cerise and pink... don't judge.
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Old 02-13-2018, 05:53 PM   #1581
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Is the tank not a cylinder too?

Is this one of those, "All bourbons are whiskeys, but not all whiskeys are bourbons" thing?
Yes. It's a nomenclature thing. ASME calls the permanently-installed containers tanks in their regulatory documents. Department of Transportation calls the portable containers cylinders in their regulatory documents. They're all cylindrical to some degree, though the shape of the ends may vary from completely flat to completely hemispherical or anywhere in between depending on manufacturer and usage.

Tank/cylinder is also an easy way to distinguish between the two without having to say "permanent" or "portable" each time you mention one.
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Old 02-13-2018, 05:55 PM   #1582
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Is the tank not a cylinder too?

Is this one of those, "All bourbons are whiskeys, but not all whiskeys are bourbons" thing?

While we are at it, why do we drive on a parkway but park in a driveway?


All rectangles are squares but not all squares are rectangles?

And either way, don't drink bourbon or whisky whilst on the parkway.
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