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#1 | |
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Join Date: Apr 2009
Location: Nashua
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Years ago, there was not as much traffic flying. And StephenB yes, what you said about contrail is also true, thanks for the added info. |
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#2 | |
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Join Date: Oct 2008
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I didn't realize that in this heightened-awareness kind of world, that the hush factor extended to staff now too. ![]() |
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#3 |
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Join Date: Sep 2004
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Two observations that complement the conversation here.
From time to time at work, I get to see air being evacuated from vacuum chambers and it is always amazing how much water vapor condenses out of the air during the pressure drop. A cloud bank forms in the chamber. My understanding is that the temperature drops from the pressure drop. Another demonstration of the pressure drop causing condensation can be seen sometimes on the tip of an airplane wing where no combustion is going on. The pressure increase as the wing approaches changes to a pressure drop on the other side and you can see the vapor trail. |
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#4 |
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Join Date: Jan 2006
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Well, Samiam, guess you and I are the only "kooks" on this forum. No one will convince me there is not a difference, so it will just have to be.
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#5 | |
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Join Date: Aug 2007
Location: South Down Shores
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The planes continue to fly as a distraction. If and when any investigative study is ever done, you would find that all modern military planes have 100% inert exhaust gases as it relates to mind and population control substances.
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[insert witty phrase here] |
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#6 | |
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Join Date: Apr 2009
Location: Nashua
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#7 | |
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Join Date: Apr 2004
Location: Suncook, NH, but at The Lake at Heart
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The Sky is Falling...............................The Sky is Falling!
Run Chicken Little Run ![]() ![]() ![]() ![]() ![]()
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Just Sold ![]() At the lake the stress of daily life just melts away. Pro Re Nata |
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#8 |
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Join Date: Jul 2002
Location: North Kingstown RI
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About this time of year, every year, the subject seems to pop up in various places. I think trfour nailed it with this link http://en.wikipedia.org/wiki/Contrail Take a look at the changes in the upper atmosphere this time of year, dew points are lower, temps are lower and the contrails last much longer. Maybe someone like Rose, who understands the atmosphere better than most of us, could give enlighten us. On clear days the upper atmosphere is dry and contrails persist.
Several years ago there were a lot of stories and letters to the editor in the Conway Daily Sun about contrails and one gentleman in particular was convinced it was a government plot.
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Gene ~ aka "another RI Swamp Yankee" |
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