1 00:00:00,000 --> 00:00:19,770 Oh 2 00:00:19,770 --> 00:00:19,780 3 00:00:19,780 --> 00:00:26,440 plane engine start five four three two 4 00:00:26,440 --> 00:00:26,450 plane engine start five four three two 5 00:00:26,450 --> 00:00:30,910 plane engine start five four three two one zero booster ignition and liftoff of 6 00:00:30,910 --> 00:00:30,920 one zero booster ignition and liftoff of 7 00:00:30,920 --> 00:00:33,610 one zero booster ignition and liftoff of Columbia a new decade of spaceflight 8 00:00:33,610 --> 00:00:33,620 Columbia a new decade of spaceflight 9 00:00:33,620 --> 00:01:38,039 Columbia a new decade of spaceflight begins 10 00:01:38,039 --> 00:01:38,049 11 00:01:38,049 --> 00:01:43,630 Roger Atlantis here go previa we're 12 00:01:43,630 --> 00:01:43,640 Roger Atlantis here go previa we're 13 00:01:43,640 --> 00:01:46,149 Roger Atlantis here go previa we're aboard the space shuttle Atlantis 280 14 00:01:46,149 --> 00:01:46,159 aboard the space shuttle Atlantis 280 15 00:01:46,159 --> 00:01:49,210 aboard the space shuttle Atlantis 280 miles above the earth it's a busy time 16 00:01:49,210 --> 00:01:49,220 miles above the earth it's a busy time 17 00:01:49,220 --> 00:01:51,190 miles above the earth it's a busy time up here right now two of our crew 18 00:01:51,190 --> 00:01:51,200 up here right now two of our crew 19 00:01:51,200 --> 00:01:53,170 up here right now two of our crew members are preparing for one of space 20 00:01:53,170 --> 00:01:53,180 members are preparing for one of space 21 00:01:53,180 --> 00:01:55,570 members are preparing for one of space travels most exciting adventures space 22 00:01:55,570 --> 00:01:55,580 travels most exciting adventures space 23 00:01:55,580 --> 00:01:59,469 travels most exciting adventures space walking at NASA space walking is known 24 00:01:59,469 --> 00:01:59,479 walking at NASA space walking is known 25 00:01:59,479 --> 00:02:01,749 walking at NASA space walking is known as extra vehicular activity but most of 26 00:02:01,749 --> 00:02:01,759 as extra vehicular activity but most of 27 00:02:01,759 --> 00:02:07,090 as extra vehicular activity but most of the time we just call it an Eevee a EVs 28 00:02:07,090 --> 00:02:07,100 the time we just call it an Eevee a EVs 29 00:02:07,100 --> 00:02:09,370 the time we just call it an Eevee a EVs allow us to do a lot of useful things in 30 00:02:09,370 --> 00:02:09,380 allow us to do a lot of useful things in 31 00:02:09,380 --> 00:02:12,340 allow us to do a lot of useful things in space we can do many interesting 32 00:02:12,340 --> 00:02:12,350 space we can do many interesting 33 00:02:12,350 --> 00:02:14,949 space we can do many interesting experiments in the payload Bay and test 34 00:02:14,949 --> 00:02:14,959 experiments in the payload Bay and test 35 00:02:14,959 --> 00:02:17,740 experiments in the payload Bay and test new types of equipment we can also 36 00:02:17,740 --> 00:02:17,750 new types of equipment we can also 37 00:02:17,750 --> 00:02:19,600 new types of equipment we can also spacewalk out to an orbiting satellite 38 00:02:19,600 --> 00:02:19,610 spacewalk out to an orbiting satellite 39 00:02:19,610 --> 00:02:22,930 spacewalk out to an orbiting satellite to work on it but doing an Eevee a 40 00:02:22,930 --> 00:02:22,940 to work on it but doing an Eevee a 41 00:02:22,940 --> 00:02:25,420 to work on it but doing an Eevee a involves a lot more than just opening 42 00:02:25,420 --> 00:02:25,430 involves a lot more than just opening 43 00:02:25,430 --> 00:02:28,140 involves a lot more than just opening the door and stepping out into space 44 00:02:28,140 --> 00:02:28,150 the door and stepping out into space 45 00:02:28,150 --> 00:02:31,090 the door and stepping out into space EPA's take us into an environment that's 46 00:02:31,090 --> 00:02:31,100 EPA's take us into an environment that's 47 00:02:31,100 --> 00:02:33,340 EPA's take us into an environment that's entirely different from the one we live 48 00:02:33,340 --> 00:02:33,350 entirely different from the one we live 49 00:02:33,350 --> 00:02:35,650 entirely different from the one we live in on earth an environment that's 50 00:02:35,650 --> 00:02:35,660 in on earth an environment that's 51 00:02:35,660 --> 00:02:40,539 in on earth an environment that's hostile to human life that's because 52 00:02:40,539 --> 00:02:40,549 hostile to human life that's because 53 00:02:40,549 --> 00:02:43,090 hostile to human life that's because space is almost a perfect vacuum and 54 00:02:43,090 --> 00:02:43,100 space is almost a perfect vacuum and 55 00:02:43,100 --> 00:02:45,030 space is almost a perfect vacuum and that presents us with several problems 56 00:02:45,030 --> 00:02:45,040 that presents us with several problems 57 00:02:45,040 --> 00:02:47,470 that presents us with several problems problems that take a good knowledge of 58 00:02:47,470 --> 00:02:47,480 problems that take a good knowledge of 59 00:02:47,480 --> 00:02:51,729 problems that take a good knowledge of science to solve the first problem is no 60 00:02:51,729 --> 00:02:51,739 science to solve the first problem is no 61 00:02:51,739 --> 00:02:57,520 science to solve the first problem is no air to breathe the Sun poses another 62 00:02:57,520 --> 00:02:57,530 air to breathe the Sun poses another 63 00:02:57,530 --> 00:02:59,710 air to breathe the Sun poses another problem for space walkers because in 64 00:02:59,710 --> 00:02:59,720 problem for space walkers because in 65 00:02:59,720 --> 00:03:01,690 problem for space walkers because in space there's nothing to protect us from 66 00:03:01,690 --> 00:03:01,700 space there's nothing to protect us from 67 00:03:01,700 --> 00:03:04,569 space there's nothing to protect us from his harmful ultraviolet radiation the 68 00:03:04,569 --> 00:03:04,579 his harmful ultraviolet radiation the 69 00:03:04,579 --> 00:03:06,759 his harmful ultraviolet radiation the radiation from the Sun also affects the 70 00:03:06,759 --> 00:03:06,769 radiation from the Sun also affects the 71 00:03:06,769 --> 00:03:09,099 radiation from the Sun also affects the temperature in space in direct sunlight 72 00:03:09,099 --> 00:03:09,109 temperature in space in direct sunlight 73 00:03:09,109 --> 00:03:11,740 temperature in space in direct sunlight the temperature can soared over 120 74 00:03:11,740 --> 00:03:11,750 the temperature can soared over 120 75 00:03:11,750 --> 00:03:14,199 the temperature can soared over 120 degrees Celsius more than hot enough to 76 00:03:14,199 --> 00:03:14,209 degrees Celsius more than hot enough to 77 00:03:14,209 --> 00:03:17,020 degrees Celsius more than hot enough to boil water back on earth but when we get 78 00:03:17,020 --> 00:03:17,030 boil water back on earth but when we get 79 00:03:17,030 --> 00:03:18,849 boil water back on earth but when we get away from the sun's rays the temperature 80 00:03:18,849 --> 00:03:18,859 away from the sun's rays the temperature 81 00:03:18,859 --> 00:03:21,420 away from the sun's rays the temperature can drop to minus 100 degrees Celsius 82 00:03:21,420 --> 00:03:21,430 can drop to minus 100 degrees Celsius 83 00:03:21,430 --> 00:03:23,979 can drop to minus 100 degrees Celsius far colder than Antarctica in the dead 84 00:03:23,979 --> 00:03:23,989 far colder than Antarctica in the dead 85 00:03:23,989 --> 00:03:29,160 far colder than Antarctica in the dead of winter space debris is also a problem 86 00:03:29,160 --> 00:03:29,170 of winter space debris is also a problem 87 00:03:29,170 --> 00:03:31,630 of winter space debris is also a problem so what makes the environment on earth 88 00:03:31,630 --> 00:03:31,640 so what makes the environment on earth 89 00:03:31,640 --> 00:03:33,280 so what makes the environment on earth and the environment in space so 90 00:03:33,280 --> 00:03:33,290 and the environment in space so 91 00:03:33,290 --> 00:03:35,640 and the environment in space so different 92 00:03:35,640 --> 00:03:35,650 different 93 00:03:35,650 --> 00:03:39,069 different the answer is Earth's atmosphere it is a 94 00:03:39,069 --> 00:03:39,079 the answer is Earth's atmosphere it is a 95 00:03:39,079 --> 00:03:42,009 the answer is Earth's atmosphere it is a dense mixture of nitrogen oxygen carbon 96 00:03:42,009 --> 00:03:42,019 dense mixture of nitrogen oxygen carbon 97 00:03:42,019 --> 00:03:44,410 dense mixture of nitrogen oxygen carbon dioxide and water vapor that surrounds 98 00:03:44,410 --> 00:03:44,420 dioxide and water vapor that surrounds 99 00:03:44,420 --> 00:03:48,399 dioxide and water vapor that surrounds our planet and makes life possible the 100 00:03:48,399 --> 00:03:48,409 our planet and makes life possible the 101 00:03:48,409 --> 00:03:49,390 our planet and makes life possible the atmosphere 102 00:03:49,390 --> 00:03:49,400 atmosphere 103 00:03:49,400 --> 00:03:51,610 atmosphere turns out harmful radiation and protects 104 00:03:51,610 --> 00:03:51,620 turns out harmful radiation and protects 105 00:03:51,620 --> 00:03:53,949 turns out harmful radiation and protects us from debris flying through space as 106 00:03:53,949 --> 00:03:53,959 us from debris flying through space as 107 00:03:53,959 --> 00:03:56,589 us from debris flying through space as it moves over the Earth's surface it 108 00:03:56,589 --> 00:03:56,599 it moves over the Earth's surface it 109 00:03:56,599 --> 00:03:58,449 it moves over the Earth's surface it distributes heat from the Sun and 110 00:03:58,449 --> 00:03:58,459 distributes heat from the Sun and 111 00:03:58,459 --> 00:04:00,339 distributes heat from the Sun and balances the temperature around the 112 00:04:00,339 --> 00:04:00,349 balances the temperature around the 113 00:04:00,349 --> 00:04:04,330 balances the temperature around the world think of the atmosphere as an 114 00:04:04,330 --> 00:04:04,340 world think of the atmosphere as an 115 00:04:04,340 --> 00:04:07,509 world think of the atmosphere as an ocean of gases when we're on the surface 116 00:04:07,509 --> 00:04:07,519 ocean of gases when we're on the surface 117 00:04:07,519 --> 00:04:09,280 ocean of gases when we're on the surface of the earth it's like being on the 118 00:04:09,280 --> 00:04:09,290 of the earth it's like being on the 119 00:04:09,290 --> 00:04:11,920 of the earth it's like being on the bottom of this ocean like the seawater 120 00:04:11,920 --> 00:04:11,930 bottom of this ocean like the seawater 121 00:04:11,930 --> 00:04:13,720 bottom of this ocean like the seawater all of the ingredients at this 122 00:04:13,720 --> 00:04:13,730 all of the ingredients at this 123 00:04:13,730 --> 00:04:16,479 all of the ingredients at this atmospheric ocean have weight too we 124 00:04:16,479 --> 00:04:16,489 atmospheric ocean have weight too we 125 00:04:16,489 --> 00:04:18,849 atmospheric ocean have weight too we measure this force as pressure this 126 00:04:18,849 --> 00:04:18,859 measure this force as pressure this 127 00:04:18,859 --> 00:04:20,830 measure this force as pressure this pressure pushes against us in all 128 00:04:20,830 --> 00:04:20,840 pressure pushes against us in all 129 00:04:20,840 --> 00:04:23,230 pressure pushes against us in all directions but the pressure can also 130 00:04:23,230 --> 00:04:23,240 directions but the pressure can also 131 00:04:23,240 --> 00:04:28,779 directions but the pressure can also change imagine that Jay and Jerry are on 132 00:04:28,779 --> 00:04:28,789 change imagine that Jay and Jerry are on 133 00:04:28,789 --> 00:04:29,860 change imagine that Jay and Jerry are on the Earth's surface 134 00:04:29,860 --> 00:04:29,870 the Earth's surface 135 00:04:29,870 --> 00:04:32,710 the Earth's surface we'll put Jamie in a dive suit and send 136 00:04:32,710 --> 00:04:32,720 we'll put Jamie in a dive suit and send 137 00:04:32,720 --> 00:04:43,810 we'll put Jamie in a dive suit and send him to the bottom of the ocean on the 138 00:04:43,810 --> 00:04:43,820 him to the bottom of the ocean on the 139 00:04:43,820 --> 00:04:44,529 him to the bottom of the ocean on the ocean floor 140 00:04:44,529 --> 00:04:44,539 ocean floor 141 00:04:44,539 --> 00:04:47,890 ocean floor jay is under tremendous pressure but as 142 00:04:47,890 --> 00:04:47,900 jay is under tremendous pressure but as 143 00:04:47,900 --> 00:04:49,659 jay is under tremendous pressure but as he starts back toward the surface the 144 00:04:49,659 --> 00:04:49,669 he starts back toward the surface the 145 00:04:49,669 --> 00:04:54,189 he starts back toward the surface the pressure decreases when Jay reaches the 146 00:04:54,189 --> 00:04:54,199 pressure decreases when Jay reaches the 147 00:04:54,199 --> 00:04:56,170 pressure decreases when Jay reaches the surface he's still under a small amount 148 00:04:56,170 --> 00:04:56,180 surface he's still under a small amount 149 00:04:56,180 --> 00:04:59,020 surface he's still under a small amount of pressure that pressure is the weight 150 00:04:59,020 --> 00:04:59,030 of pressure that pressure is the weight 151 00:04:59,030 --> 00:05:00,850 of pressure that pressure is the weight of the atmosphere and we call it 152 00:05:00,850 --> 00:05:00,860 of the atmosphere and we call it 153 00:05:00,860 --> 00:05:05,740 of the atmosphere and we call it atmospheric pressure now watch what 154 00:05:05,740 --> 00:05:05,750 atmospheric pressure now watch what 155 00:05:05,750 --> 00:05:07,779 atmospheric pressure now watch what happens when we put Gerry in a spacesuit 156 00:05:07,779 --> 00:05:07,789 happens when we put Gerry in a spacesuit 157 00:05:07,789 --> 00:05:13,750 happens when we put Gerry in a spacesuit and send him up to the shuttle as he 158 00:05:13,750 --> 00:05:13,760 and send him up to the shuttle as he 159 00:05:13,760 --> 00:05:15,700 and send him up to the shuttle as he rises through the atmosphere the 160 00:05:15,700 --> 00:05:15,710 rises through the atmosphere the 161 00:05:15,710 --> 00:05:17,620 rises through the atmosphere the pressure continues to decrease until 162 00:05:17,620 --> 00:05:17,630 pressure continues to decrease until 163 00:05:17,630 --> 00:05:20,399 pressure continues to decrease until he's in the near perfect vacuum of space 164 00:05:20,399 --> 00:05:20,409 he's in the near perfect vacuum of space 165 00:05:20,409 --> 00:05:22,990 he's in the near perfect vacuum of space there's no longer an atmosphere and 166 00:05:22,990 --> 00:05:23,000 there's no longer an atmosphere and 167 00:05:23,000 --> 00:05:28,870 there's no longer an atmosphere and there's no longer any pressure luckily I 168 00:05:28,870 --> 00:05:28,880 there's no longer any pressure luckily I 169 00:05:28,880 --> 00:05:30,430 there's no longer any pressure luckily I was wearing a spacesuit during that 170 00:05:30,430 --> 00:05:30,440 was wearing a spacesuit during that 171 00:05:30,440 --> 00:05:32,050 was wearing a spacesuit during that demonstration or I would have been in 172 00:05:32,050 --> 00:05:32,060 demonstration or I would have been in 173 00:05:32,060 --> 00:05:36,779 demonstration or I would have been in big trouble let me show you what I mean 174 00:05:36,779 --> 00:05:36,789 175 00:05:36,789 --> 00:05:39,550 imagine that this balloon is my body and 176 00:05:39,550 --> 00:05:39,560 imagine that this balloon is my body and 177 00:05:39,560 --> 00:05:44,560 imagine that this balloon is my body and the water inside is my body fluids well 178 00:05:44,560 --> 00:05:44,570 the water inside is my body fluids well 179 00:05:44,570 --> 00:05:47,500 the water inside is my body fluids well put the balloon in a jar now we're going 180 00:05:47,500 --> 00:05:47,510 put the balloon in a jar now we're going 181 00:05:47,510 --> 00:05:49,960 put the balloon in a jar now we're going to pump all the air or atmosphere out of 182 00:05:49,960 --> 00:05:49,970 to pump all the air or atmosphere out of 183 00:05:49,970 --> 00:05:52,480 to pump all the air or atmosphere out of the jar so it will be similar to the 184 00:05:52,480 --> 00:05:52,490 the jar so it will be similar to the 185 00:05:52,490 --> 00:05:56,310 the jar so it will be similar to the vacuum of space look what's happening as 186 00:05:56,310 --> 00:05:56,320 vacuum of space look what's happening as 187 00:05:56,320 --> 00:05:58,870 vacuum of space look what's happening as air is removed from the jar the balloon 188 00:05:58,870 --> 00:05:58,880 air is removed from the jar the balloon 189 00:05:58,880 --> 00:06:01,029 air is removed from the jar the balloon swells and the water begins to boil like 190 00:06:01,029 --> 00:06:01,039 swells and the water begins to boil like 191 00:06:01,039 --> 00:06:03,879 swells and the water begins to boil like a soda pop that's the same thing that 192 00:06:03,879 --> 00:06:03,889 a soda pop that's the same thing that 193 00:06:03,889 --> 00:06:05,709 a soda pop that's the same thing that would happen to me if I didn't have on a 194 00:06:05,709 --> 00:06:05,719 would happen to me if I didn't have on a 195 00:06:05,719 --> 00:06:29,120 would happen to me if I didn't have on a pressurized suit 196 00:06:29,120 --> 00:06:29,130 197 00:06:29,130 --> 00:06:31,940 but where did pressure suits come from 198 00:06:31,940 --> 00:06:31,950 but where did pressure suits come from 199 00:06:31,950 --> 00:06:34,680 but where did pressure suits come from aviation pioneers like Wiley Post were 200 00:06:34,680 --> 00:06:34,690 aviation pioneers like Wiley Post were 201 00:06:34,690 --> 00:06:37,530 aviation pioneers like Wiley Post were among the first to use them that's 202 00:06:37,530 --> 00:06:37,540 among the first to use them that's 203 00:06:37,540 --> 00:06:39,330 among the first to use them that's because those pilots who wanted to fly 204 00:06:39,330 --> 00:06:39,340 because those pilots who wanted to fly 205 00:06:39,340 --> 00:06:41,310 because those pilots who wanted to fly at high altitudes had to come up with a 206 00:06:41,310 --> 00:06:41,320 at high altitudes had to come up with a 207 00:06:41,320 --> 00:06:43,550 at high altitudes had to come up with a way to take their environment with them 208 00:06:43,550 --> 00:06:43,560 way to take their environment with them 209 00:06:43,560 --> 00:06:46,200 way to take their environment with them early pressure suits came in all shapes 210 00:06:46,200 --> 00:06:46,210 early pressure suits came in all shapes 211 00:06:46,210 --> 00:06:49,710 early pressure suits came in all shapes and sizes and although most of them were 212 00:06:49,710 --> 00:06:49,720 and sizes and although most of them were 213 00:06:49,720 --> 00:06:52,200 and sizes and although most of them were stiff and hard to move around in they 214 00:06:52,200 --> 00:06:52,210 stiff and hard to move around in they 215 00:06:52,210 --> 00:06:53,940 stiff and hard to move around in they laid the foundation for the suits we'd 216 00:06:53,940 --> 00:06:53,950 laid the foundation for the suits we'd 217 00:06:53,950 --> 00:07:30,499 laid the foundation for the suits we'd later wear into space 218 00:07:30,499 --> 00:07:30,509 219 00:07:30,509 --> 00:07:39,799 go for docking we know that space is a 220 00:07:39,799 --> 00:07:39,809 go for docking we know that space is a 221 00:07:39,809 --> 00:07:41,570 go for docking we know that space is a vacuum and we're going to have to take 222 00:07:41,570 --> 00:07:41,580 vacuum and we're going to have to take 223 00:07:41,580 --> 00:07:44,089 vacuum and we're going to have to take our environment with us when we go Evie 224 00:07:44,089 --> 00:07:44,099 our environment with us when we go Evie 225 00:07:44,099 --> 00:07:47,869 our environment with us when we go Evie a so let's build a spacesuit first it's 226 00:07:47,869 --> 00:07:47,879 a so let's build a spacesuit first it's 227 00:07:47,879 --> 00:07:49,040 a so let's build a spacesuit first it's going to get pretty hot in the suit 228 00:07:49,040 --> 00:07:49,050 going to get pretty hot in the suit 229 00:07:49,050 --> 00:07:51,200 going to get pretty hot in the suit after we've been working for a while so 230 00:07:51,200 --> 00:07:51,210 after we've been working for a while so 231 00:07:51,210 --> 00:07:53,170 after we've been working for a while so we need a garment laced with small tubes 232 00:07:53,170 --> 00:07:53,180 we need a garment laced with small tubes 233 00:07:53,180 --> 00:07:55,579 we need a garment laced with small tubes now we can flow chilled water through 234 00:07:55,579 --> 00:07:55,589 now we can flow chilled water through 235 00:07:55,589 --> 00:07:58,610 now we can flow chilled water through the tubes to cool us off on top of that 236 00:07:58,610 --> 00:07:58,620 the tubes to cool us off on top of that 237 00:07:58,620 --> 00:08:00,619 the tubes to cool us off on top of that we place a garment that creates the 238 00:08:00,619 --> 00:08:00,629 we place a garment that creates the 239 00:08:00,629 --> 00:08:02,929 we place a garment that creates the pressure we need and holds in oxygen for 240 00:08:02,929 --> 00:08:02,939 pressure we need and holds in oxygen for 241 00:08:02,939 --> 00:08:05,540 pressure we need and holds in oxygen for breathing now we need something to 242 00:08:05,540 --> 00:08:05,550 breathing now we need something to 243 00:08:05,550 --> 00:08:07,489 breathing now we need something to protect us from the extreme hot and cold 244 00:08:07,489 --> 00:08:07,499 protect us from the extreme hot and cold 245 00:08:07,499 --> 00:08:09,950 protect us from the extreme hot and cold of space and protect the entire suit 246 00:08:09,950 --> 00:08:09,960 of space and protect the entire suit 247 00:08:09,960 --> 00:08:12,320 of space and protect the entire suit from tearing and from tiny meteorite 248 00:08:12,320 --> 00:08:12,330 from tearing and from tiny meteorite 249 00:08:12,330 --> 00:08:15,230 from tearing and from tiny meteorite impacts we will use many layers of 250 00:08:15,230 --> 00:08:15,240 impacts we will use many layers of 251 00:08:15,240 --> 00:08:17,360 impacts we will use many layers of thermal insulation covered by a tough 252 00:08:17,360 --> 00:08:17,370 thermal insulation covered by a tough 253 00:08:17,370 --> 00:08:21,409 thermal insulation covered by a tough layer of white fabric let's give 254 00:08:21,409 --> 00:08:21,419 layer of white fabric let's give 255 00:08:21,419 --> 00:08:23,149 layer of white fabric let's give ourselves a helmet to enclose our head 256 00:08:23,149 --> 00:08:23,159 ourselves a helmet to enclose our head 257 00:08:23,159 --> 00:08:25,820 ourselves a helmet to enclose our head and will include a visor to protect our 258 00:08:25,820 --> 00:08:25,830 and will include a visor to protect our 259 00:08:25,830 --> 00:08:27,200 and will include a visor to protect our eyes from the sun's ultraviolet 260 00:08:27,200 --> 00:08:27,210 eyes from the sun's ultraviolet 261 00:08:27,210 --> 00:08:30,139 eyes from the sun's ultraviolet radiation on the front of the suit we'll 262 00:08:30,139 --> 00:08:30,149 radiation on the front of the suit we'll 263 00:08:30,149 --> 00:08:31,639 radiation on the front of the suit we'll put a console with some valves and 264 00:08:31,639 --> 00:08:31,649 put a console with some valves and 265 00:08:31,649 --> 00:08:34,870 put a console with some valves and gauges working everything else gave me 266 00:08:34,870 --> 00:08:34,880 gauges working everything else gave me 267 00:08:34,880 --> 00:08:37,850 gauges working everything else gave me like oxygen tanks cooling water 268 00:08:37,850 --> 00:08:37,860 like oxygen tanks cooling water 269 00:08:37,860 --> 00:08:41,240 like oxygen tanks cooling water batteries and radios we'll put in a 270 00:08:41,240 --> 00:08:41,250 batteries and radios we'll put in a 271 00:08:41,250 --> 00:08:44,149 batteries and radios we'll put in a backpack called the primary life-support 272 00:08:44,149 --> 00:08:44,159 backpack called the primary life-support 273 00:08:44,159 --> 00:08:45,280 backpack called the primary life-support system 274 00:08:45,280 --> 00:08:45,290 system 275 00:08:45,290 --> 00:08:47,720 system donning the suit is just a matter of 276 00:08:47,720 --> 00:08:47,730 donning the suit is just a matter of 277 00:08:47,730 --> 00:08:49,730 donning the suit is just a matter of putting on the pants just like I'd put 278 00:08:49,730 --> 00:08:49,740 putting on the pants just like I'd put 279 00:08:49,740 --> 00:08:52,490 putting on the pants just like I'd put on a pair of jeans then slipping into 280 00:08:52,490 --> 00:08:52,500 on a pair of jeans then slipping into 281 00:08:52,500 --> 00:08:56,090 on a pair of jeans then slipping into the top and locking the two halves 282 00:08:56,090 --> 00:08:56,100 the top and locking the two halves 283 00:08:56,100 --> 00:09:00,470 the top and locking the two halves together at the waist next come the 284 00:09:00,470 --> 00:09:00,480 together at the waist next come the 285 00:09:00,480 --> 00:09:03,520 together at the waist next come the gloves 286 00:09:03,520 --> 00:09:03,530 287 00:09:03,530 --> 00:09:14,050 and finally the helmet I've also got 288 00:09:14,050 --> 00:09:14,060 and finally the helmet I've also got 289 00:09:14,060 --> 00:09:15,970 and finally the helmet I've also got some tethers to keep me from floating on 290 00:09:15,970 --> 00:09:15,980 some tethers to keep me from floating on 291 00:09:15,980 --> 00:09:19,570 some tethers to keep me from floating on and this wrist mirror so that I can read 292 00:09:19,570 --> 00:09:19,580 and this wrist mirror so that I can read 293 00:09:19,580 --> 00:09:22,470 and this wrist mirror so that I can read the dials on my life support system 294 00:09:22,470 --> 00:09:22,480 the dials on my life support system 295 00:09:22,480 --> 00:09:24,940 the dials on my life support system putting the suit on is not the only 296 00:09:24,940 --> 00:09:24,950 putting the suit on is not the only 297 00:09:24,950 --> 00:09:26,650 putting the suit on is not the only thing Jay and Jerry have to practice 298 00:09:26,650 --> 00:09:26,660 thing Jay and Jerry have to practice 299 00:09:26,660 --> 00:09:29,230 thing Jay and Jerry have to practice they also have to practice working in 300 00:09:29,230 --> 00:09:29,240 they also have to practice working in 301 00:09:29,240 --> 00:09:32,410 they also have to practice working in the suit and that's done here at the 302 00:09:32,410 --> 00:09:32,420 the suit and that's done here at the 303 00:09:32,420 --> 00:09:34,780 the suit and that's done here at the weightless environment training facility 304 00:09:34,780 --> 00:09:34,790 weightless environment training facility 305 00:09:34,790 --> 00:09:48,100 weightless environment training facility or wet F this big swimming pool holds 306 00:09:48,100 --> 00:09:48,110 or wet F this big swimming pool holds 307 00:09:48,110 --> 00:09:51,030 or wet F this big swimming pool holds almost half a million gallons of water 308 00:09:51,030 --> 00:09:51,040 almost half a million gallons of water 309 00:09:51,040 --> 00:09:53,830 almost half a million gallons of water that's big enough to hold a full-size 310 00:09:53,830 --> 00:09:53,840 that's big enough to hold a full-size 311 00:09:53,840 --> 00:10:03,960 that's big enough to hold a full-size mock-up of the orbiter payload Bay 312 00:10:03,960 --> 00:10:03,970 313 00:10:03,970 --> 00:10:06,939 scuba divers are adding weights to Jerry 314 00:10:06,939 --> 00:10:06,949 scuba divers are adding weights to Jerry 315 00:10:06,949 --> 00:10:09,340 scuba divers are adding weights to Jerry and Jay suits to make them neutrally 316 00:10:09,340 --> 00:10:09,350 and Jay suits to make them neutrally 317 00:10:09,350 --> 00:10:12,879 and Jay suits to make them neutrally buoyant this means that they won't float 318 00:10:12,879 --> 00:10:12,889 buoyant this means that they won't float 319 00:10:12,889 --> 00:10:17,110 buoyant this means that they won't float to the surface or sink to the bottom the 320 00:10:17,110 --> 00:10:17,120 to the surface or sink to the bottom the 321 00:10:17,120 --> 00:10:19,150 to the surface or sink to the bottom the wet F isn't the perfect simulation of 322 00:10:19,150 --> 00:10:19,160 wet F isn't the perfect simulation of 323 00:10:19,160 --> 00:10:21,310 wet F isn't the perfect simulation of weightlessness but it's the closest we 324 00:10:21,310 --> 00:10:21,320 weightlessness but it's the closest we 325 00:10:21,320 --> 00:10:49,650 weightlessness but it's the closest we can come to on earth 326 00:10:49,650 --> 00:10:49,660 327 00:10:49,660 --> 00:10:51,860 we spend a lot of time in the water 328 00:10:51,860 --> 00:10:51,870 we spend a lot of time in the water 329 00:10:51,870 --> 00:10:57,580 we spend a lot of time in the water practicing until 330 00:10:57,580 --> 00:10:57,590 331 00:10:57,590 --> 00:11:52,290 it's time for the real thing 332 00:11:52,290 --> 00:11:52,300 333 00:11:52,300 --> 00:11:54,819 during the next few hours Jerry and Jay 334 00:11:54,819 --> 00:11:54,829 during the next few hours Jerry and Jay 335 00:11:54,829 --> 00:11:56,829 during the next few hours Jerry and Jay are going to experiment with new ways of 336 00:11:56,829 --> 00:11:56,839 are going to experiment with new ways of 337 00:11:56,839 --> 00:11:58,509 are going to experiment with new ways of moving people and equipment around in 338 00:11:58,509 --> 00:11:58,519 moving people and equipment around in 339 00:11:58,519 --> 00:12:01,960 moving people and equipment around in space in the future we'll be going EBA 340 00:12:01,960 --> 00:12:01,970 space in the future we'll be going EBA 341 00:12:01,970 --> 00:12:04,300 space in the future we'll be going EBA to service satellites in orbit and to 342 00:12:04,300 --> 00:12:04,310 to service satellites in orbit and to 343 00:12:04,310 --> 00:12:07,090 to service satellites in orbit and to help build space station freedom beyond 344 00:12:07,090 --> 00:12:07,100 help build space station freedom beyond 345 00:12:07,100 --> 00:12:09,160 help build space station freedom beyond that people will work on the moon from 346 00:12:09,160 --> 00:12:09,170 that people will work on the moon from 347 00:12:09,170 --> 00:12:11,650 that people will work on the moon from permanent lunar bases and even explore 348 00:12:11,650 --> 00:12:11,660 permanent lunar bases and even explore 349 00:12:11,660 --> 00:12:17,110 permanent lunar bases and even explore the surface of Mars the spacesuit has a 350 00:12:17,110 --> 00:12:17,120 the surface of Mars the spacesuit has a 351 00:12:17,120 --> 00:12:18,610 the surface of Mars the spacesuit has a big role to play in our use and 352 00:12:18,610 --> 00:12:18,620 big role to play in our use and 353 00:12:18,620 --> 00:12:21,610 big role to play in our use and exploration of space and as new 354 00:12:21,610 --> 00:12:21,620 exploration of space and as new 355 00:12:21,620 --> 00:12:23,499 exploration of space and as new challenges come our way we're going to 356 00:12:23,499 --> 00:12:23,509 challenges come our way we're going to 357 00:12:23,509 --> 00:12:26,139 challenges come our way we're going to develop better suits but no matter where 358 00:12:26,139 --> 00:12:26,149 develop better suits but no matter where 359 00:12:26,149 --> 00:12:28,389 develop better suits but no matter where the epa's take us one thing will always 360 00:12:28,389 --> 00:12:28,399 the epa's take us one thing will always 361 00:12:28,399 --> 00:12:30,759 the epa's take us one thing will always remain the same as long as humans 362 00:12:30,759 --> 00:12:30,769 remain the same as long as humans 363 00:12:30,769 --> 00:12:33,040 remain the same as long as humans venture into space we will always have 364 00:12:33,040 --> 00:12:33,050 venture into space we will always have 365 00:12:33,050 --> 00:13:46,329 venture into space we will always have to take some of our environment with us 366 00:13:46,329 --> 00:13:46,339 367 00:13:46,339 --> 00:13:48,399 you