1 00:00:00,000 --> 00:00:03,000 Now that we've learned about some of the parts of the ISS, 2 00:00:03,000 --> 00:00:05,000 how would you like to build your own model? 3 00:00:05,000 --> 00:00:07,000 But wait, there's a catch. 4 00:00:07,000 --> 00:00:08,000 You have a question. 5 00:00:08,000 --> 00:00:12,000 NASA Connect traveled northwest to San Francisco, California 6 00:00:12,000 --> 00:00:14,000 for this program's classroom activity. 7 00:00:14,000 --> 00:00:21,000 Hi, we're from Alice Longview in San Francisco, California. 8 00:00:21,000 --> 00:00:27,000 NASA Connect has asked us to show you this program's classroom activity. 9 00:00:28,000 --> 00:00:31,000 You'll work in groups to design an alternative space station. 10 00:00:31,000 --> 00:00:33,000 Then you'll create a model using everyday items 11 00:00:33,000 --> 00:00:37,000 like aluminum cans, cereal boxes, and straws. 12 00:00:37,000 --> 00:00:40,000 You'll analyze and interpret data to determine the best design 13 00:00:40,000 --> 00:00:44,000 based on budget restrictions, weight, and placement of the parts that you construct. 14 00:00:44,000 --> 00:00:47,000 Teachers, make sure you download the lesson guide for this activity 15 00:00:47,000 --> 00:00:49,000 from the NASA Connect website. 16 00:00:49,000 --> 00:00:54,000 In it, you'll find a list of materials, directions, and student worksheets. 17 00:00:54,000 --> 00:00:56,000 We won't cover everything in the next few minutes, 18 00:00:56,000 --> 00:01:00,000 but we will give you a general idea about how it all goes together. 19 00:01:00,000 --> 00:01:04,000 To begin, your teacher will display the labeled picture of the ISS 20 00:01:04,000 --> 00:01:06,000 as it may appear upon completion. 21 00:01:06,000 --> 00:01:08,000 Discuss each component and its functions. 22 00:01:08,000 --> 00:01:13,000 Okay, the National Aeronautics and Space Administration needs your help. 23 00:01:13,000 --> 00:01:17,000 They want you to design and build a model of an international space station, 24 00:01:17,000 --> 00:01:20,000 and your budget is $1 billion. 25 00:01:20,000 --> 00:01:23,000 Your first step is to construct the components. 26 00:01:23,000 --> 00:01:26,000 For your station, you'll make photovoltaic, or PV, arrays 27 00:01:26,000 --> 00:01:29,000 using transparency film and craft sticks. 28 00:01:29,000 --> 00:01:33,000 The thermal radiators used to cool the station are made with aluminum foil. 29 00:01:33,000 --> 00:01:36,000 A cardboard tube serves as the docking port. 30 00:01:36,000 --> 00:01:40,000 The habitation and laboratory modules are made with aluminum cans. 31 00:01:40,000 --> 00:01:47,000 The truss segments used to connect the modules are made from foam food trays. 32 00:01:47,000 --> 00:01:51,000 A small cereal box represents the core module of your space station. 33 00:01:51,000 --> 00:01:55,000 Buttons are used to simulate the attitude control thrusters. 34 00:01:55,000 --> 00:01:58,000 And for the robotic arm, use a flexible drinking straw. 35 00:01:58,000 --> 00:02:01,000 Find the total mass and total cost of each component 36 00:02:01,000 --> 00:02:04,000 using formulas provided in the lesson guide, 37 00:02:04,000 --> 00:02:07,000 and record the values on your student worksheet. 38 00:02:07,000 --> 00:02:09,000 Before you design and assemble your space station, 39 00:02:09,000 --> 00:02:13,000 you need to pay close attention to the constraints listed in Appendix A. 40 00:02:13,000 --> 00:02:17,000 Okay, remember the budget for the space station is $1 billion. 41 00:02:17,000 --> 00:02:20,000 If you break a component or a section of the space station, 42 00:02:20,000 --> 00:02:23,000 you have to purchase a new one. 43 00:02:23,000 --> 00:02:27,000 Now decide how all the components of your space station will be arranged. 44 00:02:27,000 --> 00:02:30,000 Make a sketch before you start your actual assembly, 45 00:02:30,000 --> 00:02:32,000 and don't forget your constraints. 46 00:02:32,000 --> 00:02:34,000 Use tape and glue to put it all together. 47 00:02:34,000 --> 00:02:38,000 When your space station is assembled, the next step is to calculate the total mass. 48 00:02:38,000 --> 00:02:41,000 Because the ISS is being assembled in orbit, 49 00:02:41,000 --> 00:02:45,000 and not here on Earth, it's impossible to get the total mass at one time. 50 00:02:45,000 --> 00:02:48,000 Therefore, NASA determines the total mass 51 00:02:48,000 --> 00:02:52,000 by taking the sum of the individual components before they are launched into space. 52 00:02:52,000 --> 00:02:56,000 Since we are working with a model, there are two ways to calculate the total mass. 53 00:02:56,000 --> 00:02:59,000 First, take the sum of the mass of the individual components. 54 00:02:59,000 --> 00:03:02,000 Then use your balance to weight your completed model. 55 00:03:02,000 --> 00:03:04,000 Find the difference between the two masses 56 00:03:04,000 --> 00:03:07,000 and compare the accuracy of massing individual pieces 57 00:03:07,000 --> 00:03:10,000 with the mass of the entire space station. 58 00:03:10,000 --> 00:03:12,000 If the difference is greater than 5 grams, 59 00:03:12,000 --> 00:03:15,000 you'll be charged a tax of $1 million per gram. 60 00:03:15,000 --> 00:03:18,000 If the difference is less than or equal to 5 grams, 61 00:03:18,000 --> 00:03:20,000 then the space tax will not apply. 62 00:03:20,000 --> 00:03:23,000 Record any space tax on the data table. 63 00:03:23,000 --> 00:03:26,000 Finally, calculate the total cost of your space station 64 00:03:26,000 --> 00:03:29,000 by taking the sums of costs for all your components 65 00:03:29,000 --> 00:03:31,000 and any space tax you owe. 66 00:03:31,000 --> 00:03:34,000 Did you meet your budget, or are you over budget? 67 00:03:34,000 --> 00:03:39,000 We would like to thank the San Jose AIAA student branch for helping us with this activity. 68 00:03:39,000 --> 00:03:42,000 If you would like to learn more about the AIAA mentoring program, 69 00:03:42,000 --> 00:03:45,000 check out the NASA Connect website.