{"resolved":true,"match_type":"uuid","source_type":"original_book","book_id":"f84c7e5e-42e3-444d-8969-36660396c997","title":"Fully Automated Luxury Communism A Manifesto","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9781786632623","requested_by":"printed_page","book":{"source_type":"original_book","book_id":"f84c7e5e-42e3-444d-8969-36660396c997","id":"f84c7e5e-42e3-444d-8969-36660396c997","uuid":"f84c7e5e-42e3-444d-8969-36660396c997","title":"Fully Automated Luxury Communism A Manifesto","normalized_title":"fullyautomatedluxurycommunismamanifesto","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9781786632623","isbns":["9781786632623","9781788732468","9781786632654","9781786632647"],"parsed":true,"ai_readable":true,"document_type":"book","page_count":200,"navigation_url":"https://workshop.closeclaw.top/ai/book/f84c7e5e-42e3-444d-8969-36660396c997","title_url":"https://workshop.closeclaw.top/ai/title/Fully%20Automated%20Luxury%20Communism%20A%20Manifesto","fixed_page_url_template":"https://workshop.closeclaw.top/ai/book/f84c7e5e-42e3-444d-8969-36660396c997/page/{printed_page}","path_api_url_template":"https://workshop.closeclaw.top/api/ai/book/f84c7e5e-42e3-444d-8969-36660396c997/page/{printed_page}","read_url":"https://workshop.closeclaw.top/api/ai/read/f84c7e5e-42e3-444d-8969-36660396c997","page_url":"https://workshop.closeclaw.top/api/ai/books/f84c7e5e-42e3-444d-8969-36660396c997/page","search_url":"https://workshop.closeclaw.top/api/ai/books/f84c7e5e-42e3-444d-8969-36660396c997/search"},"page":{"printed_page":122,"pdf_page":131,"physical_index":131,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"a6d9e290016933bea7d94cc75245c49dd104dc2e2829da15be6718f58cf69da7"},"chapter":"完全自动化的奢华共产主义","content":"成本下降，野心上升\n\n赢得登陆月球的竞赛代价不菲。以今天的价格计算，土星5号十年间的13次发射花费了470亿美元，这意味着每次发射花费超过35亿美元。阿波罗计划在最高峰时每年发射两次，扣除通货膨胀因素，耗资约1500亿美元。\n\n在阿波罗计划之后，为了减少管理费用和提高发射频率，美国宇航局开始了航天飞机计划。然而，即便如此，每次发射也要花费美国纳税人5亿美元，在高峰期，该系统每年的飞行次数不超过5次。然而，自2000年私人航天工业的到来以来，成本急剧下降。如今，一枚猎鹰9号火箭(比土星5号小得多)的发射成本约为6100万美元，而更大的猎鹰重型火箭的发射成本不到1亿美元。尽管如此，即使是这样的数字也意味着很多公司和个人到达太空的可能性很小，即使他们有办法做到这一点，目前也有两年的发射等待名单。随着火箭实验室承诺每周发射一次，每次飞行的预计成本低至490万美元，这一切都可能改变。这是唯一可能的，因为它独特高效的制造和发射火箭的方法：使用一架飞机从洛杉矶飞往旧金山所需的喷气燃料，“电子”可以将有效载荷送入太空。\n\n这枚火箭的秘密在于它的卢瑟福发动机，它将SpaceX最初应用的许多设计创新进一步推进，并在更小的规模上加以应用。也许最引人注目的是，卢瑟福号有一个完全的电力推进循环，使用电动机驱动涡轮泵。此外，它还是首个所有主要部件都使用3d打印的氧烃发动机，实现了复杂但轻量化\n\n122\n\nnew travellers","previous_page":121,"next_page":123}