Not sure if you were joking or not, so if not, don't take this the wrong way. As an enigneer I feel compelled to give way more detail than anyone cares to note.
Guess what the byproducts of internal combustion of a hydrocarbon fuel are (such as Jet A)? Water and Carbon Dioxide (ok, and there is some Corbon Monoxide, Sulfur Dioxide, some Oxides of Nitrogen, little bit of soot, etc. at VERY low relative ratios to good old CO2 and H20).
Last time I checked water vapor is the same stuff they make clouds out of. Hence, when airplanes fly at high altitudes where the temperatures are very cold, or cars drive on cold days at low altitudes, the water vapor in the exhaust condenses and forms plumes of water vapor. (crap...starting to sound like my college Thermo professor...better not break out the Psycrometric charts until the next lesson. )
The textbook example is the combustion of Methane (CH4) with pure Oxygen (O2):
CH4 + 2 O2 → CO2 + 2 H2O (from Wiki link below)
Now, we know that the air we breath is actually not pure Oyxgen (which is good, because everything would spontaneously combust once a single flame was exposed to the O2), but rather about 78% Nitrogen (N2) and 20% O2, and 2% other stuff. (Atmosphere of Earth - Wikipedia, the free encyclopedia)
So, in reality 80% of what goes into the engine isn't the O2 an engine needs to combust, and in reality gasoline, diesel, Jet A, Kerosene, etc. are much more complex than simple Methane and have very small amounts (Measured in parts per million) of Sulfur and other chemical additives in them as stabilizers and detergents.
That means you do get some other things present, but again, by relative %'s, the largest amounts of by products from Combustion are harmless (well, maybe not to the Global Warming folks) CO2, H20, and N2 (naturally occuring Nitrogen) since only a small part of it actually gets combined with anything else to form NOx.
True, jet engines, and diesels for that matter, don't "Smell" all that clean when they are running cold or at low load conditions, but that isn't necessarily an indication of nasty chemical by products as much as it is the result of some of the fuel that didn't completely burn. Ever taken a wiff of a gallon of gasoline or Kerosene? They don't smell particularly good before they are burned either.
More here:
Combustion - Wikipedia, the free encyclopedia
So, enough with the thermodynamics lesson. Yeah, I think the contrail seen on this plane does seem a bit fuller and and longer than most, and all I can say is that is probably either a) part of the optical illusion, or b) the water was able to stay in vapor form for longer and didn't dissipate as quickly at whatever altitude the plane was at.
Oh, and yes, a liquid fueled rocket will have a very thick contrail since it is essetially burning pure hydrogen with pure oxygen making litterally nothing but Water! Solid fuels have a bit more other stuff in them, and are a whole different animal all togther, but too will produce a certain amount of water vapor.
Does your edumacation rival that of the MIT professor, you know, the one seen in the video linked to in the OP that says it's clearly a missile?alright Sheeple, I'm no expert, but I've been endowed with a slight bit of common sense and a brief education in physics.
Watch the video.Does the "professor" explain why it's going so slow for so long?
Does your edumacation rival that of the MIT professor, you know, the one seen in the video linked to in the OP that says it's clearly a missile?
Watch the video.
As to the objects speed, can you tell us how fast or slow it's going? MPH will suffice.
Wow! You're easy to impress.Does your edumacation rival that of the MIT professor, you know, the one seen in the video linked to in the OP that says it's clearly a missile?
Did I call someone an "ignorant crackpot"?Oh... I get it...
When you say the trail is going up, and someone else says that it's just the perspective, they're an ignorant crackpot.
But when they say it's going too slow to be a missile, you claim that it's just the perspective.
Do you need a hat? I have some extra tinfoil laying around.
BTW, Monkey... It's "knots" (nautical miles per hour) not "knotts" (this guy:
).
Oh... I get it...
When you say the trail is going up, and someone else says that it's just the perspective, they're an ignorant crackpot.
But when they say it's going too slow to be a missile, you claim that it's just the perspective.
Do you need a hat? I have some extra tinfoil laying around.
BTW, Monkey... It's "knots" (nautical miles per hour) not "knotts" (this guy:
).
I'm sorry, that's not how this works.Did you have other kids do your homework for you in high school?
If you don't want to educate yourself, me posting videos isn't going to help you.