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so life on board the international space

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station very busy for the astronauts and

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there's a lot of things that they can't

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take with them when they're

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working in space a lot of amenities here

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on earth that we get to enjoy that they

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don't get while they're up there among

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them doing laundry i mean water is very

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precious resource when you're in space

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and

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you can't spare water for anything

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except for the essentials so the

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astronauts actually very limited in

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keeping clean

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here to talk today about what we do to

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help them cope with you know wearing

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clothes for long periods of time and not

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being able to clean them i have evelyn

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orndog she's with the crew and thermal

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systems division here at the johnson

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space center she's doing a study called

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the iva or intravehicular activity

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clothing study uh evelyn thank you so

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much for joining me today real quick

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what's the typical life cycle for these

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clothes that these astronauts are

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wearing

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well it's supposed to be one mission

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however this is not exactly the way

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things work there's a huge pantry with

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clothes that are being brought each time

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there's a cargo

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vehicle resupplying so

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there is a usage rate which we go by

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that's prescribed for each type of

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garment so basically that can be from uh

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two days to up to 30 days so that would

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be more specific and two days is for

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undergarments and 30 days would be like

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four cargo pants okay and what are what

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are some of the challenges i mean when

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you're wearing the same clothes for 30

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days that's got to get you know a little

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grimy especially they're exercising two

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hours every day what are some of the

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challenges that you guys are trying to

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overcome with this new study

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okay so

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our study is actually a task in the

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logistics reduction and repurposing

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project

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it's

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one of five tasks under that project

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which was funded by the advanced

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exploration systems program and the

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whole idea is actually to reduce the app

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mass of closing and the storage volume

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of closing uh was

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you know

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mostly uh

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for

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future long duration missions

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okay

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and so

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what are what are some of the

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um are there different clothes for

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different you know activities for the

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astronauts on board yeah they are

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actually uh you have you know a day

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where sleepwear exercise where so uh and

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right now uh

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the uh the cmc contract you have a

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provision for so many clothes that have

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been selected uh

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from past experience in a shuttle

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program also based on crew preference

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the clothes are using mostly cotton as

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the main fiber and

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there are a lot of reason why we like

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cotton but

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there's lots of new technology in the

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textile industry especially in

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performance closing and we're looking at

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commercially of the shelf available

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garments and see just from there if we

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can address those two

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criteria of a mass reduction and reduced

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volume and we think we can do that so

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one of the rational for the study is to

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look at those close and other attributes

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like if the antimicrobial

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agents added to the garments does it

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help pre-launch the uh

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period uh the crew member can wear the

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same garment

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and i know it's not just you know

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mass saving stuff like that there's also

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kind of a psychological component to to

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wearing these clothes i mean it's got to

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feel nice to you know put on a fresh

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shirt after wearing the same thing for

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30 days straight are you you guys are

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looking at some of those aspects as well

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correct absolutely actually uh

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we can provide the crew with the best

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technical garment and we have the

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technology to

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produce such a garment that requires

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that meets all our requirements for

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flammability toxicity

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and

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but if the crew they don't like it

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what's the point and that's the whole um

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challenge about

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you know apparel

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because for long duration mission

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whatever they will take with them is

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what they have for the

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even right now on the space station it's

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more like an expedition like going to

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the everest and coming back

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it's short duration but you're talking

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like a three-year mission you're taking

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your entire wardrobe with you and you

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live with it and it's part of your image

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and everything so we are very careful

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about getting that perception uh from

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the crew and other test subjects we uh

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also

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had participate in similar studies on

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the ground so this like so many things

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on station getting us ready for those

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next step missions the missions to mars

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things like that yes yeah the the

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ultimate goal is to design a wardrobe

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for long duration manned missions

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and how does the crew let you know kind

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of what they're thinking how they're

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feeling on orbit are they giving you

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direct feedback and no

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we

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from crew debrief some comments from

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past missions so before we started the

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study we gathered that information

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working

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with

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folks in sf

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this is what our study addresses is the

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perception of the crew of the

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people who wear the clothes and

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what's

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what is of the utmost importance to us

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in the study is that

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we haven't done already ground steady

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with 80 participants and the crew will

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wear the clothes uh at least the

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exercise clothes during their bdc

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baselight they tackle collection so they

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have a chance to try the clothes while

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they exercise here before the mission or

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after the mission and then of course

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there's the uh experiment we have on

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orbit and the crew is the only uh group

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that can tell us if there's a difference

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in perception of the garment in

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microgravity versus in earth's gravity

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that's very important because they go

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through so many physiological changes we

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need to understand we know there is uh

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and the skin sensitivity is a bit

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exacerbated so we need to understand if

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something that feels would feel

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comfortable here may not feel as

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comfortable uh and in the space station

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so that's why they're very important

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group and we're very excited about that

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experiment all right yeah and a lot of

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things you don't normally think about

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you can find out in space happens with

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every experiment we do it seems to

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happen with everything we do even you

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know developing some space age duds for

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our astronauts yes all right well again

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evelyn orndoff with the chrome thermal

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systems division here at the johnson

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space center talking about iva clothing

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thanks so much for joining us and

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hopefully we'll see some snazzy duds in