{"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":130,"pdf_page":139,"physical_index":139,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"41e6f82fc17ae54271287f049f7b2a2e51a56a7fdff78ba9ca715c5a1fd3f699"},"chapter":"完全自动化的奢华共产主义","content":"Beyond the Limits of Earth\n\n小行星的存在是在19世纪初得到证实的，1801年，小行星谷神星首次被观测到。不久，科学家们就能区分小行星和陨石，前者直径大于一米，后者小于一米。对于彗星，区别是定性的:小行星主要由矿物和岩石组成，而它们则由尘埃和冰组成。\n\n和行星一样，小行星也围绕太阳运行，尽管它们中很少是纯球形的。像谷神星这样的行星通常被称为“矮行星”，因为它们太大了，以至于它们自身的引力把它们压缩成一个球体。更大胆的估计认为，在外太阳系的柯伊伯带可能有200颗矮行星，以及100多万颗直径大于1公里的小行星。\n\n然而，就中期勘探而言，有一组更有趣的天体位于离地球更近的地方。目前我们知道有16000多颗近地小行星(近地天体)，大小从1米到32公里以上不等。据估计，直径超过1公里的近地天体数量约为1000颗，而直径超过140米的近地天体数量约为8000颗。据估计，有超过100万颗直径小于或等于40米的近地天体，其中约1%已被发现。\n\n无论是月球快车公司(Moon Express)在出发前勘探地球唯一的月球，还是行星资源公司(PlanetaryResources)评估近地天体，地球外潜在的丰富矿产财富几乎让人无法理解。一项估计声称，\n\n130\n\nnew travellers","previous_page":129,"next_page":131}