1 00:00:02,399 --> 00:00:04,680 welcome to the final challenge in white 2 00:00:04,680 --> 00:00:06,240 rabbit's series of missions to learn 3 00:00:06,240 --> 00:00:08,400 more about low earth orbit satellite 4 00:00:08,400 --> 00:00:10,320 technology and development these 5 00:00:10,320 --> 00:00:12,599 missions enable you to guide a virtual 6 00:00:12,599 --> 00:00:14,460 satellite design through the development 7 00:00:14,460 --> 00:00:16,800 stages that a real satellite undergoes 8 00:00:16,800 --> 00:00:20,039 before it enters orbit around Earth I'll 9 00:00:20,039 --> 00:00:22,080 recap what you've accomplished in 10 00:00:22,080 --> 00:00:24,600 mission one you identify the type of 11 00:00:24,600 --> 00:00:27,240 satellite we need to build in mission 2 12 00:00:27,240 --> 00:00:29,939 you shop for all the components in 13 00:00:29,939 --> 00:00:32,579 Mission 3 you tested and corrected Your 14 00:00:32,579 --> 00:00:35,219 Design virtually using digital twin 15 00:00:35,219 --> 00:00:38,280 technology now it's time for Mission 4 16 00:00:38,280 --> 00:00:40,800 shake and bake this is where we'll test 17 00:00:40,800 --> 00:00:42,899 your Hardware to make sure it will hold 18 00:00:42,899 --> 00:00:44,640 up to the extreme vibration during 19 00:00:44,640 --> 00:00:47,100 launch and the harsh space environment 20 00:00:47,100 --> 00:00:49,620 which will be its new home shake and 21 00:00:49,620 --> 00:00:51,480 bake is the industry term for The 22 00:00:51,480 --> 00:00:53,840 Crucible of tests to simulate launch 23 00:00:53,840 --> 00:00:56,879 deployment commissioning and operation 24 00:00:56,879 --> 00:00:58,559 of the satellite most of the 25 00:00:58,559 --> 00:01:00,420 environmental factors that affect the 26 00:01:00,420 --> 00:01:03,480 spacecraft and space are not at any 27 00:01:03,480 --> 00:01:06,180 relevant levels on Earth if at all so 28 00:01:06,180 --> 00:01:09,000 testing Chambers must be used to create 29 00:01:09,000 --> 00:01:11,580 these conditions on Earth high energy 30 00:01:11,580 --> 00:01:14,100 radiation can be created using particle 31 00:01:14,100 --> 00:01:16,619 accelerators and allows Electronics to 32 00:01:16,619 --> 00:01:19,140 be tested separately in much smaller 33 00:01:19,140 --> 00:01:21,360 Chambers if you have heard the term rad 34 00:01:21,360 --> 00:01:24,299 hardened this is not the name of a rock 35 00:01:24,299 --> 00:01:26,939 band but a way to describe electronic 36 00:01:26,939 --> 00:01:29,340 components that can withstand high 37 00:01:29,340 --> 00:01:31,740 energy radiation the other main factors 38 00:01:31,740 --> 00:01:35,880 affecting spacecraft are one vacuum two 39 00:01:35,880 --> 00:01:38,579 thermal energy from the Sun and three 40 00:01:38,579 --> 00:01:41,340 the non-reflective nature of space 41 00:01:41,340 --> 00:01:43,740 itself we're going to use a vibration 42 00:01:43,740 --> 00:01:46,619 table to simulate launch which is kind 43 00:01:46,619 --> 00:01:48,720 of like riding a controlled explosion 44 00:01:48,720 --> 00:01:51,479 for three to four minutes straight each 45 00:01:51,479 --> 00:01:53,579 of the components you chose were already 46 00:01:53,579 --> 00:01:56,220 certified to perform well in Leo which 47 00:01:56,220 --> 00:01:58,200 means they won't be subject to 48 00:01:58,200 --> 00:02:01,500 outgassing as much as in Geo because of 49 00:02:01,500 --> 00:02:02,820 the vacuum of space 50 00:02:02,820 --> 00:02:05,939 all materials will evaporate even if 51 00:02:05,939 --> 00:02:09,060 just a few particles at a time this rate 52 00:02:09,060 --> 00:02:11,340 increases with temperature the 53 00:02:11,340 --> 00:02:13,800 evaporated material can then condense 54 00:02:13,800 --> 00:02:16,020 onto other components and cause them to 55 00:02:16,020 --> 00:02:17,940 malfunction imagine a computer 56 00:02:17,940 --> 00:02:20,700 motherboard evaporating inside your 57 00:02:20,700 --> 00:02:24,000 gaming computer it's hard to imagine but 58 00:02:24,000 --> 00:02:26,099 this is what can happen if the wrong 59 00:02:26,099 --> 00:02:28,260 components are used we'll use white 60 00:02:28,260 --> 00:02:29,879 rabbit's vacuum and chemistry lab 61 00:02:29,879 --> 00:02:31,860 equipped with a thermal vacuum chamber 62 00:02:31,860 --> 00:02:34,379 to learn more about outgassing testing 63 00:02:34,379 --> 00:02:36,780 for resilience to heat is easier than 64 00:02:36,780 --> 00:02:38,700 testing for absence of heat in deep 65 00:02:38,700 --> 00:02:41,640 space or Eclipse nothing is nearby to 66 00:02:41,640 --> 00:02:44,640 radiate conduct convect or reflect 67 00:02:44,640 --> 00:02:47,940 energy onto the spacecraft this means 68 00:02:47,940 --> 00:02:51,000 the spacecraft will eventually cool to 69 00:02:51,000 --> 00:02:54,060 near absolute zero if it is not exposed 70 00:02:54,060 --> 00:02:57,720 to some form of heat radiation you are 71 00:02:57,720 --> 00:03:01,879 ready to complete your mission good luck 72 00:03:02,760 --> 00:03:05,760 foreign 73 00:03:06,080 --> 00:03:09,669 [Music]