1 00:00:00,520 --> 00:00:03,600 Speaker 1: Welcome to brain Stuff from house stuff works dot com 2 00:00:03,600 --> 00:00:16,400 Speaker 1: where smart happens Hi Marshall Brain Between the Space Shuttle 3 00:00:16,440 --> 00:00:19,040 Speaker 1: and the Space station, it seems like someone is out 4 00:00:19,160 --> 00:00:22,880 Speaker 1: spacewalking just about every week now. The space suits that 5 00:00:22,920 --> 00:00:26,080 Speaker 1: the astronauts where are one of the most interesting parts 6 00:00:26,079 --> 00:00:29,280 Speaker 1: of space walking. A space suit has to do at 7 00:00:29,360 --> 00:00:34,479 Speaker 1: least three things to protect the astronaut. First, it provides oxygen. Second, 8 00:00:34,560 --> 00:00:38,200 Speaker 1: it has to keep pressurized air all around the astronaut's body. 9 00:00:38,680 --> 00:00:41,240 Speaker 1: One of the problems that the pressure created in early 10 00:00:41,320 --> 00:00:45,320 Speaker 1: space suits is a balloon effect. Modern suits control the 11 00:00:45,320 --> 00:00:48,600 Speaker 1: balloon effect by using low pressure inside the suit and 12 00:00:48,640 --> 00:00:52,280 Speaker 1: a hard fiberglass torso section. The third thing that the 13 00:00:52,320 --> 00:00:56,120 Speaker 1: suit has to do is control the astronauts temperature in space. 14 00:00:56,280 --> 00:00:59,040 Speaker 1: It's two d and fifty degrees in the sun and 15 00:00:59,200 --> 00:01:02,520 Speaker 1: minus a hundred and fifty degrees in the shade. Long 16 00:01:02,640 --> 00:01:08,880 Speaker 1: underwear laced with water filled tubes, even things out for 17 00:01:08,959 --> 00:01:11,360 Speaker 1: more illness and thousands of other topics. Does that how 18 00:01:11,440 --> 00:01:13,759 Speaker 1: stuff works dot Com and don't forget to check out 19 00:01:13,760 --> 00:01:15,680 Speaker 1: the brain Stuff blog on the how stuff works dot 20 00:01:15,680 --> 00:01:18,280 Speaker 1: Com home page. You can also follow brain stuff on 21 00:01:18,280 --> 00:01:23,400 Speaker 1: Facebook or Twitter at brain Stuff hs W, The How 22 00:01:23,480 --> 00:01:26,720 Speaker 1: Stuff Works iPhone app has arrived. Download it today on 23 00:01:26,760 --> 00:01:27,280 Speaker 1: iTunes