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GET /hyperkitty/api/list/[email protected]/email/PATBC4ANFSU5D4W47VGGXEERKRNFF4UC/?format=api
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/PATBC4ANFSU5D4W47VGGXEERKRNFF4UC/?format=api", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api", "message_id": "[email protected]", "message_id_hash": "PATBC4ANFSU5D4W47VGGXEERKRNFF4UC", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/2ITLYJCWL24C2OJHGWJ4GYP3IDDS2FQA/?format=api", "sender": { "address": "vk3jed (a) gmail.com", "mailman_id": "e049fcabdd4648088cd7ce227ab7c655", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/e049fcabdd4648088cd7ce227ab7c655/emails/?format=api" }, "sender_name": "Tony Langdon", "subject": "[amsat-bb] Re: Satellite Satire", "date": "2011-11-30T09:20:11Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/2ITLYJCWL24C2OJHGWJ4GYP3IDDS2FQA/?format=api", "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/K2GLKJXDKPUEB66QBYI5RZBGMY6I7EYG/?format=api" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "At 11:57 AM 11/30/2011, Lowell White wrote:\n\n>Please enlighten me if indeed there might be a way to get something up (and to\n>stay up) more economically.\n\nWell, a bit of physics here. To get from the Earth's surface to LEO \nrequires 10 km/S of delta-V. Even if you could get a payload to \norbital altitude by some hypothetical means, you would still need to \nadd 7.5km/S delta-V to bring it up to orbital velocity. From 30km \n(typical high altitude balloon), the requirement would be somewhere \nin between 7.5 and 10 km/S, which still means a considerable amount \nof fuel required.\n\n>insertion? If the bird and booster weights were small enough, could a wx\n>balloon lift them adequately?\n\nI suspect the rocket would still be very heavy.\n\n73 de VK3JED / VK3IRL\nhttp://vkradio.com\n\n", "attachments": [] }