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Originally posted by Chadwickus
reply to post by constantwonder
Jet contrails catching sunlight.
The sun has set over the horizon but the light is still catching the contrails.
Hope this clears things up for you.
Originally posted by GideonHM
Frankly, in structure and how it veers, a contrail is a good estimate. It seems to initially resemble a contrail, granted. However, the black streak in the center alone warrants a closer look, and there are other non-alien explanations (a large piece of debris, a medium-small meteor, or a highly heated comet before break up "except for the color which of the two I have seen personally have the blue white coloration".
Did I? I do not even like herrings (or straw ).
Originally posted by GideonHM
Armap, you just utilized the fallacy of the Strawman/Red Herring.
OK, how many of your answer to Chadwickus was really on-topic and not a comparison of posting styles or way of doing things?
His post in topic was two, and the third sentence was irrelevent to the point, not to mention that you ignored the POINT of the post and quickly tried to knock down the matter at hand.
Yes, this is a discussion forum, but let's look at the opening post.
This is a DISCUSSION forum, and you are not really discussing the meat of the topic and are concerned with 2 or three sentences (yes, I did that on purpose, as the information is more important than the delivery).
How could I discuss anything except the dark streak on the (possible) contrail?
You nit-picked over the fact I purposefully left off the third sentence, and ignored the majority of the relevent issues I posted. I know you winked in fun, but gimme a break.
If by "close the book" you mean that I think that this is not worth more effort in trying to prove what it was, then you are right, I don't see anything more that could be understood about this when we do not have any more data about it.
For the contrail, it looks like a contrail to me, but I know that you would rather close the book on it Armap. I disagree with your take on many issues, but I never deny your intelligence, but I do deny your take on what is an acceptable post, and I am trying to avoid an ad-hominem attack on you, as your perspective is at the heart of your statement.
If that is your opinion, I would like to be warned about it every time you see it, I have no intention of making of ATS a less active forum than it is.
I personally know that you have shot down many opportunities for a relevent conversation, WHO CARES IF THEY ARE WRONG?
As I said before, how can we? Only if we contribute our opinions (seeing that more data is hard, if not impossible, to find), and that was what I did.
Can you provide spectral analysis of the video footage? PLEASE? All I am asking is that people contribute more than the minimum post requirement.
No, but neither a long and with big words post means that it is effective, and by effective I mean relevant to the what was being said.
Also, rarely is it possible to retain the effectiveness of a sentence or paragraph when rendering it down to one word (or in the case of a paragraph one sentence).
Short and sweet does not effective make.
Although I am not aware of the calculations needed (and my brain needs a reboot ), I think that at that altitude there is not enough oxygen to burn that fuel, after all, they have to compress the air before it enters the combustion chamber, and the fuel is not that flammable (I think).
Originally posted by GideonHM
That is a good question though, how much fuel would it require to create a burning contrail, and how much oxygen or flammable gas would be required to sustain the reaction, and what kind of discharge would ignite it?
If a contrail contains enough flammable material, it could ignite...
That is a good question though, how much fuel would it require to create a burning contrail...
Don't certain meteors produce a buring contrail?
A meteor is the visible streak of light that occurs when a meteoroid enters the Earth's atmosphere. Meteors typically occur in the mesosphere, and most range in altitude from 75 km to 100 km.
For bodies with a size scale larger than the atmospheric mean free path (10 cm to several metres) the visibility is due to the air friction that heats the meteoroid so that it glows and creates a shining trail of gases and melted meteoroid particles. The gases include vaporized meteoroid material and atmospheric gases that heat up when the meteoroid passes through the atmosphere. Most meteors glow for about a second.
Meteors may occur in showers, which arise when the Earth passes through a trail of debris left by a comet, or as "random" or "sporadic" meteors, not associated with a specific single cause.
Fireball
A fireball is a brighter-than-usual meteor. The International Astronomical Union defines a fireball as "a meteor brighter than any of the planets" (magnitude -4 or greater). The International Meteor Organization (an amateur organization that studies meteors) has a more rigid definition. It defines a fireball as a meteor that would have a magnitude of -3 or brighter if seen at zenith. This definition corrects for the greater distance between an observer and a meteor near the horizon. For example, a meteor of magnitude -1 at 5 degrees above the horizon would be classified as a fireball because if the observer had been directly below the meteor it would have appeared as magnitude -6.
Reentery of an object could produce the color.
Originally posted by GideonHM
Don't certain meteors produce a buring contrail? Reentery of an object could produce the color.
ab-la-tion
Pronunciation [a-bley-shuhn]
–noun
1. the removal, esp. of organs, abnormal growths, or harmful substances, from the body by mechanical means, as by surgery.
2. the reduction in volume of glacial ice, snow, or névé by the combined processes of melting, evaporation, and calving. Compare alimentation (def. 3).
3. Aerospace. erosion of the protective outer surface (ablator) of a spacecraft or missile due to the aerodynamic heating caused by travel at hypersonic speed during reentry through the atmosphere.
Originally posted by Sam60
This one is a picture that was thought to be an exploding meteor (i.e. fireball) that was captured just before it disintegrated.
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