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Originally posted by RFBurns
I suppose I could as you why would former astronauts come forth after decades of silence and give testimony to what is really out there versus what NASA covers up. But I dont expect you to answer for them.
Originally posted by Majorion
What do you mean by "gravitational explanation",
I had a feeling this would be somewhat misunderstood, sorry about that ArMaP, but I was referring to one of DOF's illustrations..go back a couple pages and you should find it, can't remember exactly what he stated, but it was something along the lines of gravitational force pulling the object around, but it hardly proves as he states that it's a particle, even by his own admission.
Originally posted by Majorion
I'm sorry to NOT sound so "scientific", but SERIOUSLY.. first you debunker dudes say "Ice Particles" (which is far from proven).. now you say "Sprites".
Originally posted by depthoffield
there is any real reason here that the OP object, even doing apparently a 180 degree change in direction (i explained a reasson why can do that) CANNOT be an ice (junk) particle?
The point is that it can be ice/junk particle near the shuttle, (or insulation flake or less probable even a stripped tile - this beeing also "junk" as byproduct from the shuttle)
nobody can prove that is 100% ice/junk particle
But the "believers" here just struggle to death to ignore and dismiss that very probable posibility without real arguments.
Originally posted by depthoffield
And about ice particles, there is any real reason here that the OP object, even doing apparently a 180 degree change in direction (i explained a reasson why can do that) CANNOT be an ice (junk) particle?
Originally posted by Majorion
Originally posted by depthoffield
there is any real reason here that the OP object, even doing apparently a 180 degree change in direction (i explained a reasson why can do that) CANNOT be an ice (junk) particle?
As I said before, up till now, there hasn't been any real or conclusive evidence to prove that these are ice particles.
The point is that it can be ice/junk particle near the shuttle, (or insulation flake or less probable even a stripped tile - this beeing also "junk" as byproduct from the shuttle)
Here you go again, shifting explanations, so which is it?.. junk or ice?
nobody can prove that is 100% ice/junk particle
Then why do you continue to state with-certainty quite blatantly that the objects are ice/junk particles?
But the "believers" here just struggle to death to ignore and dismiss that very probable posibility without real arguments.
very probable possibility?.. basically you don't really know what the objects are, due to absence of any conclusive proof of an ice particle explanation or other similarly conventional theories. Now try again.
Originally posted by zorgon
Yes!!! The mere fact that Jim Oberg has spent so much time here trying hard to debunk this one...
THAT alone makes it an interesting anomaly
Originally posted by JimOberg
Originally posted by zorgon
Yes!!! The mere fact that Jim Oberg has spent so much time here trying hard to debunk this one...
THAT alone makes it an interesting anomaly
What 'fact' is that, Z? Do you insist it's true that the object made a nearly 180 degree course change?
Originally posted by atsbeliever
So apparently the shuttle flys around with a cloud of ice/loose tiles/particles that can spawn more copies of themselves then fly off in different directions at any given moment. no one seems to be worried about that either.
Originally posted by zorgon
If its important enough to draw you out for so much time, it must certainly be an enigma worthy of study
Originally posted by JimOberg
You got the day wrong. I didn't.
Is that 'strange'? Or typical?
Originally posted by JimOberg
Right, another in that long list of pet 'inside sources' that all you guys seem to have, people who never seem to have checkable names or expertise, except the versions you provide. Even when commenting on material of no possible classification or restriction, such as the RCS system, they have to be 'protected'. Yeah, 'protected' from validation and corroboration. And even if real, you have to rely on the intermediary to properly understand the message in the first place, and accurately retell it.
Originally posted by JimOberg
That's one reason I give little credence to Fleming's account of his expert's opinions -- because his text contains strong indications that his own understanding of spaceflight physics is weak. Example: "Most of our discussions were related to work I am doing and was focused on the ingenious system that dependably supplies fuel and oxidizer to the rockets under weightless conditions in space as well under Earth's gravity during reentry."
Originally posted by JimOberg
See www.vgl.org...
I recently had the opportunity to discuss various aspects of the space shuttle's RCS propellant supply system with a NASA aerospace engineer who was involved in the design, testing, and performance evaluation of the RCS from the nearly the beginning of the shuttle program. Unlike Oberg, this engineer observed tests of thruster firings close up on a routine basis.
Most of our discussions were related to work I am doing and was focused on the ingenious system that dependably supplies fuel and oxidizer to the rockets under weightless conditions in space as well under Earth's gravity during reentry.
Originally posted by JimOberg
He's referring to the tank and feed designs that move liquid propellant into feed lines without any gas bubbles. It works both in weightlessness (he is correct), under posigrade thrusting during space flight (he omits this), and during atmospheric entry when the liquid is affected primarily not by gravity (which he states) but by the deceleration forces -- inertia.
The liquid pools not mainly in the bottom of the tank, relative to the center of the Earth, but in the forward segment (relative to the braking G-forces), which actually in earth based coordinates is the front wall of the tank. Gravity does affect the entire vehicle -- deceleration force makes the propellant move to where it does. As the shuttle makes wide highly-banked left and right turns to dissipate excess momentum, the propellant does not slosh back and forth from right to left under gravity's influence -- it remains held in place in the 'forward' (relative to flight direction) segment.
Originally posted by JimOberg
This is a subtle physics issue that most people can function perfectly well without ever knowing about. But for a space propulsion system expert not to know the difference between gravity effects on propellant distribution and entry deceleration effects (which dominate) is inconceivable. If the engineer 'source' is real, which is certainly plausible, his advice to Fleming seems to have accumulated a garble factor on its way to us.
Originally posted by JimOberg
Without checking, Fleming simply 'assumed' my RCS expertise was minimal, apparently in large part based on a typo in a 1993 email I sent about STS-48 (saying '1,000' when I meant to type '10,000'). "...(I)t is one more indication that while Oberg may well be an expert on many aspects of space flight, he evidently has no particular expertise or experience with the RCS propulsion system." Actually, my Mission Control certification for STS-1 and STS-2 was in the OMS/RCS systems, and I served on console for the very first shuttle liftoff on April 12, 1981. Evidently somebody else felt my expertise was adequate.
Originally posted by JimOberg
"Unlike Oberg," Fleming also guessed, "this engineer observed tests of thruster firings close up on a routine basis." Since RCS thrusters are not tested at the NASA Johnson Space Center in Houston, Fleming could have earned credibility by saying where his source DID these observations -- probably the same place that I observed them, the NASA White Sands facility outside of Las Cruces, where they have a vacuum chamber with a powerful-enough pump to maintain a significant vacuum even when a thruster is being test fired inside it.
Originally posted by JimOberg
Originally posted by RFBurns
I suppose I could as you why would former astronauts come forth after decades of silence and give testimony to what is really out there versus what NASA covers up. But I dont expect you to answer for them.
Who are you referring to -- testifying to 'what is really out there' that they saw but had to conceal until nowadays? Who?
The problem is that nobody really has to abide to any standards, so each abides to what he/she thinks it's best, unless he/she is not honest to him/herself and behaves in a different way from that the he/she says is the right one.
Originally posted by atsbeliever
You forgot, the skeptics don't have to abide by the same standards they think everyone else should step up to.
Originally posted by Majorion
Originally posted by depthoffield
there is any real reason here that the OP object, even doing apparently a 180 degree change in direction (i explained a reasson why can do that) CANNOT be an ice (junk) particle?
As I said before, up till now, there hasn't been any real or conclusive evidence to prove that these are ice particles.
Originally posted by Majorion
Depthoffield
The point is that it can be ice/junk particle near the shuttle, (or insulation flake or less probable even a stripped tile - this beeing also "junk" as byproduct from the shuttle)
Here you go again, shifting explanations, so which is it?.. junk or ice?
Originally posted by Majorion
Then why do you continue to state with-certainty quite blatantly that the objects are ice/junk particles?
Originally posted by Majorion
basically you don't really know what the objects are, due to absence of any conclusive proof of an ice particle explanation or other similarly conventional theories.
Originally posted by zorgon
Originally posted by depthoffield
And about ice particles, there is any real reason here that the OP object, even doing apparently a 180 degree change in direction (i explained a reasson why can do that) CANNOT be an ice (junk) particle?
Yes!!! The mere fact that Jim Oberg has spent so much time here trying hard to debunk this one...
THAT alone makes it an interesting anomaly
Originally posted by RFBurns
Originally posted by zorgon
Originally posted by depthoffield
And about ice particles, there is any real reason here that the OP object, even doing apparently a 180 degree change in direction (i explained a reasson why can do that) CANNOT be an ice (junk) particle?
Yes!!! The mere fact that Jim Oberg has spent so much time here trying hard to debunk this one...
THAT alone makes it an interesting anomaly
More that just an interesting anomaly...but a huge flashing neon sign lit up in bright red with the words "DAMAGE CONTROL".
Cheers!!!!
I had interpreted that quote as saying that the discussion with that engineer were about his (Flemming) work and that that work was focused on the supply system.
Originally posted by RFBurns
Most of our discussions were related to work I am doing and was focused on the ingenious system that dependably supplies fuel and oxidizer to the rockets under weightless conditions in space as well under Earth's gravity during reentry.
Now if you interpret what he says correctly, it means that the discussions he had with this engineer were related to the work Flemming does AND also about a system involving the RCS system. Note the word "and" in there. Now what does that mean Jim?