Email Detail

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/EROJLEUY4WTOEOPAMQ7ILP672Y4IOXSA/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "004801c755e9$cb8524f0$6601a8c0@Jedi",
    "message_id_hash": "EROJLEUY4WTOEOPAMQ7ILP672Y4IOXSA",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/EROJLEUY4WTOEOPAMQ7ILP672Y4IOXSA/?format=api",
    "sender": {
        "address": "amvm (a) skynet.be",
        "mailman_id": "340c1832ff0445bf8868c926b32e84a5",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/340c1832ff0445bf8868c926b32e84a5/emails/?format=api"
    },
    "sender_name": "Marc Vermeersch",
    "subject": "[amsat-bb] Re: Could we raise orbit thru magnetorque?",
    "date": "2007-02-21T18:55:02Z",
    "parent": null,
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/DFAXPAOCQRYBMXU4SNUVEWDMW3D6QR3R/?format=api",
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/5HZNA4HIWJOSW7LZA5MDHAQOEJAB5AAK/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "All,\n\nSo why is the maglev principle (magnetic levitation)\nhttp://www.google.be/search?hl=nl&q=maglev&meta=\nnot applicable in space?\n\nMagnetic levitation applied to trains generates an upward force equal and\nopposite to the earth's gravitation.\n\nBR,\n--\n/\\/\\arc\n\n\n-----Original Message-----\nFrom: [email protected] [mailto:[email protected]] On\nBehalf Of Bruce Bostwick\nSent: Wednesday, February 21, 2007 6:51 PM\nTo: [email protected]\nSubject: [amsat-bb] Re: Could we raise orbit thru magnetorque?\n\nThat's been my understanding as well.  Magnetorquing by itself can  \ndrive rotation but not translation.  Its main benefit is that it  \nsaves propellant, weight, and complexity, as well as moving parts and  \nthe risk of a hypergolic plumbing assembly exploding and taking out  \nhalf the spacecraft's systems, by allowing the spacecraft to handle  \nrotation with more reliable torquing coils and get its energy for  \nthat from the PV panels.  Changing orbits still requires firing a  \nreaction thruster of some sort.\n\nOn Feb 20, 2007, at 9:47 AM, John Mock KD6PAG wrote:\n\n>> Argument is:  if when satellite is in the north, a north magnetic  \n>> field is\n>> applied on z plane, will satellite raise orbit ? Same but opposite  \n>> on south.\n>> Considering limited energy available could this raise be  \n>> significant if\n>> applied on all orbits ?.\n>\n> I believe magnetorquing can only change the orientation of a  \n> satellite and\n> not its orbit.  It is certainly used in the process of changing an  \n> orbit,\n> in order to get a thrusting device pointing in a direction where it  \n> will\n> do something useful. But by itself, it can't change an orbit.  It  \n> can help\n> point antennas in the proper direction, etc.\n>\n> \t\t         -- KD6PAG  (Networking Old-Timer, Satellite QRPer)\n\n\"People don't like to be meddled with. We tell them what to do, what  \nto think, don't run, don't walk. We're in their homes and in their  \nheads and we haven't the right. We're meddlesome.\" -- River Tam,  \n\"Serenity\"\n\n\n\n_______________________________________________\nSent via [email protected]. Opinions expressed are those of the author.\nNot an AMSAT-NA member? Join now to support the amateur satellite program!\nSubscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n\n",
    "attachments": []
}