1 00:00:07,990 --> 00:00:06,470 when the crew not doing these kind of 2 00:00:10,310 --> 00:00:08,000 operational events they are of course 3 00:00:12,870 --> 00:00:10,320 focused on all the science taking place 4 00:00:15,030 --> 00:00:12,880 on board the station and a recent 5 00:00:17,029 --> 00:00:15,040 investigation could lead to some new 6 00:00:19,189 --> 00:00:17,039 ways to protect robots in the harsh 7 00:00:21,429 --> 00:00:19,199 environment of space could also help 8 00:00:23,910 --> 00:00:21,439 create better prosthetics for humans on 9 00:00:27,029 --> 00:00:23,920 earth our nasa colleague laurie meg sat 10 00:00:29,429 --> 00:00:27,039 down with dr lenore rasmussen to talk 11 00:00:31,589 --> 00:00:29,439 about how synthetic muscle performed on 12 00:00:34,150 --> 00:00:31,599 the space station 13 00:00:37,830 --> 00:00:34,160 what we learned is that it can withstand 14 00:00:39,350 --> 00:00:37,840 much more exposure on space than we 15 00:00:40,549 --> 00:00:39,360 had initially 16 00:00:42,790 --> 00:00:40,559 hoped for 17 00:00:44,389 --> 00:00:42,800 in part because it was up there for over 18 00:00:46,069 --> 00:00:44,399 a year initially was going to be a 19 00:00:48,470 --> 00:00:46,079 90-day experiment 20 00:00:49,430 --> 00:00:48,480 but it came back on spacex 6 with over a 21 00:00:50,790 --> 00:00:49,440 year 22 00:00:52,869 --> 00:00:50,800 in space 23 00:00:54,389 --> 00:00:52,879 and all the samples it was a duplicate 24 00:00:57,990 --> 00:00:54,399 experiment on earth just like the twin 25 00:00:59,750 --> 00:00:58,000 study but all the samples are intact 26 00:01:02,470 --> 00:00:59,760 there's a slight amount of yellowing in 27 00:01:04,869 --> 00:01:02,480 some of the space samples which can be 28 00:01:07,590 --> 00:01:04,879 indicative of accelerated aging but as 29 00:01:09,270 --> 00:01:07,600 far as their material integrity 30 00:01:11,109 --> 00:01:09,280 their 31 00:01:13,429 --> 00:01:11,119 what we've explored so far this is 32 00:01:15,910 --> 00:01:13,439 ongoing and in the chemistry and the 33 00:01:18,950 --> 00:01:15,920 electoral activity they're working so 34 00:01:21,109 --> 00:01:18,960 we're actually um very happy with the 35 00:01:23,109 --> 00:01:21,119 results we have so far what were you 36 00:01:25,510 --> 00:01:23,119 hoping to find what were we really 37 00:01:27,030 --> 00:01:25,520 looking for there there were indications 38 00:01:29,190 --> 00:01:27,040 even before i get and began this 39 00:01:31,510 --> 00:01:29,200 experiment that these class of materials 40 00:01:33,590 --> 00:01:31,520 that these are in um 41 00:01:35,910 --> 00:01:33,600 maybe you know inherently radiation 42 00:01:37,830 --> 00:01:35,920 resistant and i had already um when i 43 00:01:40,710 --> 00:01:37,840 was back at princeton had done some 44 00:01:41,510 --> 00:01:40,720 previous extreme temperature conditions 45 00:01:44,230 --> 00:01:41,520 on 46 00:01:47,270 --> 00:01:44,240 the third gen materials anyways 47 00:01:49,109 --> 00:01:47,280 where we took them literally down to 48 00:01:50,870 --> 00:01:49,119 between two and four kelvin and they 49 00:01:52,630 --> 00:01:50,880 took a while to thaw then they worked 50 00:01:54,710 --> 00:01:52,640 fine so we said well these were also 51 00:01:56,709 --> 00:01:54,720 radiation resistance i said yeah these 52 00:01:58,630 --> 00:01:56,719 could be used for space travel you could 53 00:01:59,590 --> 00:01:58,640 even dehydrate them and then hydrate 54 00:02:01,830 --> 00:01:59,600 them 55 00:02:04,550 --> 00:02:01,840 um you know when you get back so we 56 00:02:06,310 --> 00:02:04,560 would use the material for what in space 57 00:02:08,949 --> 00:02:06,320 travel you know what they could be used 58 00:02:11,029 --> 00:02:08,959 for several things they could be used 59 00:02:13,830 --> 00:02:11,039 for human assist 60 00:02:15,589 --> 00:02:13,840 on earth and in space a lot of the 61 00:02:17,350 --> 00:02:15,599 trying to move when you're all suited up 62 00:02:19,670 --> 00:02:17,360 can be very difficult so that could be 63 00:02:21,990 --> 00:02:19,680 kind of almost kind of kind of tied in 64 00:02:24,150 --> 00:02:22,000 as sort of an exoskeleton fashion and 65 00:02:26,630 --> 00:02:24,160 also offer protection as the at the same 66 00:02:29,350 --> 00:02:26,640 time these are force attenuating 67 00:02:31,509 --> 00:02:29,360 my goal is to bridge form and function 68 00:02:35,830 --> 00:02:31,519 initially how it got me into the space 69 00:02:37,750 --> 00:02:35,840 was prosthetics to make a life like 70 00:02:41,110 --> 00:02:37,760 hand if you will that was also 71 00:02:42,390 --> 00:02:41,120 affordable this also has got we've 72 00:02:46,470 --> 00:02:42,400 received a lot of attention in the 73 00:02:48,390 --> 00:02:46,480 robotics community and for a lot of 74 00:02:51,110 --> 00:02:48,400 a lot of motions that we find very 75 00:02:53,270 --> 00:02:51,120 intuitively easy is actually somewhat 76 00:02:55,509 --> 00:02:53,280 difficult for for a standard gripper 77 00:02:57,430 --> 00:02:55,519 you're turning a knob and stuff and 78 00:03:00,630 --> 00:02:57,440 whether it's on space where there's a 79 00:03:02,710 --> 00:03:00,640 lot it's a very challenging environment 80 00:03:04,470 --> 00:03:02,720 we do want to explore that environment 81 00:03:06,470 --> 00:03:04,480 and there are a lot of situations where 82 00:03:09,030 --> 00:03:06,480 you can't put a human 83 00:03:11,509 --> 00:03:09,040 so we would see then maybe a robot 84 00:03:13,670 --> 00:03:11,519 coated with this made of this could be a 85 00:03:15,190 --> 00:03:13,680 glove or an external device coated with 86 00:03:17,589 --> 00:03:15,200 this where it's kind of assisting with 87 00:03:19,990 --> 00:03:17,599 the motion and also providing protection 88 00:03:21,910 --> 00:03:20,000 that's the other thing i'm looking at 89 00:03:23,750 --> 00:03:21,920 from your background you know you were 90 00:03:24,710 --> 00:03:23,760 looking at prosthetics and things like 91 00:03:26,309 --> 00:03:24,720 that 92 00:03:28,949 --> 00:03:26,319 and then you have the opportunity to 93 00:03:31,509 --> 00:03:28,959 have a space station experiment 94 00:03:33,589 --> 00:03:31,519 what's that been like in floor that 95 00:03:36,710 --> 00:03:33,599 we're using almost like military 96 00:03:38,789 --> 00:03:36,720 precision but all of humanity is working 97 00:03:43,910 --> 00:03:38,799 together on this instead of against one 98 00:03:47,990 --> 00:03:46,470 movement and work and coordination and 99 00:03:52,149 --> 00:03:48,000 with the international truly