Chris Bowen's photo discussion moved to:
https://www.metabunk.org/threads/photo-of-waves-and-trails.2658/
https://www.metabunk.org/threads/photo-of-waves-and-trails.2658/
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Does the humidity in the air change with altitude as well?
Not in the same way. It changes like clouds/non clouds.
60-70%, depending on various factors. It need to be ice-supersaturated.I wonder what the humidity percentage would normally need to be, before these jet trails would have more of a tendency to persist and expand?
Right now? Yes. Here's a photo from two minutes ago:Are there significant expanding jet trails presenting themselves over the L.A. area?
60-70%, depending on various factors. It need to be ice-supersaturated.
Right now? Yes. Here's a photo from two minutes ago:
Check the contrail forecast here
http://contrailscience.com/contrail-forecast/
I would assume then, that the humidity in the L.A. area right now - would be 60-70%. Is that about normal?
Do you think that the ice-supersaturation requirement is present right now?
Is it normal for the skies over L.A. to get that cold -- above several thousand feet?
I think what I'm getting at, is -- people should pay attention to conditions when they see jet trails persisting and expanding.
It seems odd for jet trails to do this over very dry areas.
The NASA site is fine, but people would just presume that if the gov is doing the chemtrailing, of course the gov would know where they will appear, so of course the gov/NASA would put out scientific-sounding reports to explain them away -- ahead of time.
People might be able to do their own predictions -- based on humidity and climate in their areas at the time -- if they understood the basics of why they form and when.
The question remains as to why most people I know -- who grew up or were around in the 60's -- don't recall seeing these things expand in the sky like they do now. There were jets and jet trails for sure. But not ones that did this -- to most people's recollections.
Air gets cooler with altitude, no matter where you are. For details see this article on Wikipedia:Is it normal for the skies over L.A. to get that cold -- above several thousand feet?
The question remains as to why most people I know -- who grew up or were around in the 60's -- don't recall seeing these things expand in the sky like they do now. There were jets and jet trails for sure. But not ones that did this -- to most people's recollections.
The question remains as to why most people I know -- who grew up or were around in the 60's -- don't recall seeing these things expand in the sky like they do now. There were jets and jet trails for sure. But not ones that did this -- to most people's recollections.
Satellite views of airports are useful for demonstrating the relative sizes of planes, showing how hard it would be to say if two planes are at the same altitude:
Satellite views of airports are useful for demonstrating the relative sizes of planes, showing how hard it would be to say if two planes are at the same altitude:
I have, on several occasions, tracked two flights on radar 24 flying over my city, one leaving a contrail, the other NOT leaving one and they have near identical altitudes and sometimes they are BOTH 757's or another same sized plane
Um, a hundred feet difference means the difference between no contrail and a very prominent contrail? Hmmm? The app only gives you "36,000" feet so it does NOT round to the nearest hundred--but, If it is above the contrail elevation range, these planes SHOULD output the same or near same vapor if one is at 35,000 and the other at 36,000, no?
contrails ruin my day on plenty of occasions. I don't know about chemicals in the planes or not, all i know is, I get out a lawn chair, watch the planes go by and leave the trails that expand forever and turn beautiful blue skies into white misty, hazed out, sun blocking bummers
Yeah, agreed. A lot of the archive news articles mention residents in certain areas complaining about contrails blocking out the sun. It's happening more now by default. It's a real issue and it seems to be kept fairly quiet int he mainstream media.
I'm interested to know why you posted that screen grab here in this thread.
I think he was just trying to preserve a copy of RT's statement. Barnacle seems to understand the falsity of it.I'm interested to know why you posted that screen grab here in this thread.
How is it useful to debunk chemtrails?
Do you agree with what Russ Tanner is saying there?
Every statement in that post is wrong and the errors have already been discussed in other threads here.
What is the point are you making?
I'm interested to know why you posted that screen grab here in this thread.
How is it useful to debunk chemtrails?
Do you agree with what Russ Tanner is saying there?
Every statement in that post is wrong and the errors have already been discussed in other threads here.
What is the point are you making?
Does this help illustrate the concept or it is an all together different process?
Well that's just wrong. Plenty of people remember them from when they were growing up.
And yes, the condition here are right for contrail formation, and there's nothing unusual about them. It's just weather.
I don't know of anyone who is old enough to remember the skies in the 60's -- who also remember jet trails being persistent and expanding.
I don't know of anyone who is old enough to remember the skies in the 60's -- who also remember jet trails being persistent and expanding.
Perhaps someone will visit a retirement home soon and can do an impartial survey of the residents -- and see what the overall memory is.
The fact that there is more air traffic is irrelevant, because there would still have been this phenomena happening, and people would remember it.
Perhaps the general public has photographs of expanding and persistent jet trails from this decade -- that were caught by accident while taking photographs of other things.
Someone could write a book and put the mystery to rest, just using these two avenues of research. Not pictures taken by scientists, but pictures taken by the general public, that inadvertently caught this jet trail behavior going on in the sixties, in order to show that it is nothing new.
I'd suggest a visit to a war veterans organization. That will narrow down your search and you can actually speak to some pilots who made the contrails.I don't know of anyone who is old enough to remember the skies in the 60's -- who also remember jet trails being persistent and expanding.
Perhaps someone will visit a retirement home soon and can do an impartial survey of the residents -- and see what the overall memory is.