Johnson Space Center in-house newspaper

[Luke Pemberton]

Probably in the tv-series "Moon Machines - The spacesuit". The incident is shown there.

Beat me to it Allan. When reading the OP I recall an incident that was described in Moon Machines that definitely points to vacuum tests.

[Luke Pemberton]

Yeah, there's some nut on youtube  demanding a vacuum chamber demo of the suit because he finds it hard to believe the ice sublimation system works the way it's described.

The ice sublimation system exploits the vacuum (as we know). Ralph Rene did not understand this, and neither did Blunder Wonder when he parroted Ralph.

[Zakalwe]

Yeah, there's some nut on youtube  demanding a vacuum chamber demo of the suit because he finds it hard to believe the ice sublimation system works the way it's described.

The ice sublimation system exploits the vacuum (as we know). Ralph Rene did not understand this, and neither did Blunder Wonder when he parroted Ralph.

The classic logical fallacies of argument from disbelief (I find it difficult to understand, therefore it is not true) and argument from self belief (it it were true, then I would know about it. I don't know about it, therefore it must be false).
I can't imagine how a person could have an ego so large that it would stop them from learning new things.

[onebigmonkey]

Yeah, there's some nut on youtube  demanding a vacuum chamber demo of the suit because he finds it hard to believe the ice sublimation system works the way it's described.

The ice sublimation system exploits the vacuum (as we know). Ralph Rene did not understand this, and neither did Blunder Wonder when he parroted Ralph.

The classic logical fallacies of argument from disbelief (I find it difficult to understand, therefore it is not true) and argument from self belief (it it were true, then I would know about it. I don't know about it, therefore it must be false).
I can't imagine how a person could have an ego so large that it would stop them from learning new things.

Followed rapidly by "I have questioned it, therefore it is questionable.."

[bknight]

Yeah, there's some nut on youtube  demanding a vacuum chamber demo of the suit because he finds it hard to believe the ice sublimation system works the way it's described.

The ice sublimation system exploits the vacuum (as we know). Ralph Rene did not understand this, and neither did Blunder Wonder when he parroted Ralph.

Did Rene understand anything?  From what I have read and viewed it wasn't much in the way of engineering/science for sure.  I can remember his rubber glove in the vacuum chamber.  To a casual observer it looked plausible, but when you think about the 14.6 psi difference versus the 3.8 psi usage, it all falls apart as most(all?) of Rene's thoughts.

[raven]

Besides, doesn't every EVA suit in use, from the NASA EMU to the Russian Orlan to the Chinese Feitian space suit, use sublimation cooling?

[Allan F]

The Apollo astronauts did complain about tired hands, because the gloves were hard to flex.

[ka9q]

Did Rene understand anything?  From what I have read and viewed it wasn't much in the way of engineering/science for sure.  I can remember his rubber glove in the vacuum chamber.  To a casual observer it looked plausible, but when you think about the 14.6 psi difference versus the 3.8 psi usage, it all falls apart as most(all?) of Rene's thoughts.

All Rene did was to convincingly demonstrate why NASA doesn't use local hardware store gloves in EVA suits.

[bknight]

The Apollo astronauts did complain about tired hands, because the gloves were hard to flex.

Yes, especially A 17, but that was probably because the length of stay and work loads.

[Zakalwe]

The Apollo astronauts did complain about tired hands, because the gloves were hard to flex.

Yes, especially A 17, but that was probably because the length of stay and work loads.

I think it was more to the design of the gloves and how inflexible they become when pressurised. After the frst EVA Cernan notes that his hands were rubbed raw.

[bknight]

Yes, but I was thinking more of the total trauma, blisters blood under fingernails over the 3 EVA's

[raven]

I wonder if spacesuits might want to take a cue from atmospheric diving suits and have the hands inside the spacesuit controlling basically short waldos.

[Zakalwe]

I wonder if spacesuits might want to take a cue from atmospheric diving suits and have the hands inside the spacesuit controlling basically short waldos.

You're getting into a lot of complexity, I would have thought. Plus, the power requirements of the suit would go up a lot.

Gloves still represent a big problem as far as I can see:
http://www.space.com/9217-spacesuit-gloves-astronauts-fingernails-fall.html
In 2007, NASA awarded $200K to Pete Homer, winner of their Astronaut Glove Challenge:
https://www.newscientist.com/article/dn11794-new-spacesuit-glove-beats-nasas-hands-down/

[ka9q]

Atmospheric diving suits have the much bigger challenge since the pressure differences across them can be huge. Spacesuits only need withstand about 260 mb or so, and much simpler solutions are feasible (though not necessarily easy).
 

[bknight]

Atmospheric diving suits have the much bigger challenge since the pressure differences across them can be huge. Spacesuits only need withstand about 260 mb or so, and much simpler solutions are feasible (though not necessarily easy).

I've gone brain challenged, what does 260 mb mean?