Originally posted by GeisterFahrer
You do realise that, the black spots are not missing tiles don't you? They are replacement tiles that have not been through a re-entry.
I'd also like someone to explain exactly the science behind how, a tile can "fall off" in a weightless environment where there is no up or down?
I'm having a problem understanding how, if something no longer has any adhesive it can ever actually make it into space in the first place? I'm
struggling to wrap my brain around how, the tiles suddenly loose adhesion and then float away. Does the vacuum of space sometimes "get under and into
the glue" and cause the bond to break?
Plus given each tile should be , in effect, butt jointed to the one next to it how, even if the shuttle uses a thrust to manoeuvre do the tiles come
I can see how tiles are lost on launch and re-entry, I would and I'm sure others would, like to see, the full explanation how they just suddenly,
wander off in a weightless vacuum.
The NASA explanation seems to actually suggest, in some sort of blasé way, "Oh yeah man, whilst we were in orbit we'd be shedding tiles like a
gazebo in a hurricane". Now, I might not be Einstein however, I reckon one of those tiles could utterly destroy a billion dollar satellite if it ran
in to it so, the idea they were "cool" about shedding them at the rate suggested by the statement seems completely cavalier to me.
You know, if they had a problem with the layer of 90% air between the tile and the bonding glue that, in the freeze thaw of space caused them sheer
off, fair enough, then say that. I don't believe, for one minute, that that shuttle lost 19 tiles whilst in space. I reckon it probably lost at
least 17 and probably 18 exiting the Earth's atmosphere and on re-entry. I strongly suspect, had they lost more than one tile whilst in space,
they'd have been having total kittens at NASA and there would be a heap of radio traffic about what could well have been, a life threatening.
From my seat in the cheap seats, I want to understand the exact science involved in losing a tile in space. So far, I see nothing from anyone on here
or at NASA that actually goes into the specific detail. If, through the action of cold and heating of launch and outer space some tiles actually lost
all adhesion, fair enough, Then say so and explain to people how then, the various vectoring of the shuttle led to them parting company with the