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目前顯示的是 9月 8, 2018的文章

Geosynchronous Planetary Ring Challenge

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Clash Royale CLAN TAG #URR8PPP up vote 3 down vote favorite 2 A challenge for those of you with some math skills. we know the elevation and speed required to put a satellite into a geosynchronous orbit(or geostationary if you prefer), and that any further out we go; the object is effected by centripetal and centrifugal forces, causing objects to fly away from the earth. Here's the challenge . At what elevation and speed, would a planetary ring (around the earth, laughs for other planets) be required to be in both stationary orbit and provide enough rotational forces; to cause a 1G environment, for those that are on/in the ring? must provide math, and good luck to all of you. I started thinking about this as a way to provide food for the growing population of earth, while much of the space we still have available is slowly being consumed. with a controlled environment, and sectional production; I believe that we would have food clean or chemicals, insects, and funguses,

Satellite launched, but in storage?

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Clash Royale CLAN TAG #URR8PPP up vote 8 down vote favorite According to https://en.wikipedia.org/wiki/List_of_TDRS_satellites TDRS-C and TDRS-E were launched, but are "in storage". The citation (https://www.nasa.gov/directorates/heo/scan/services/networks/txt_tdrs_fleet.html) redirects to a page which doesn't mention what that means. While I understand that an orbiting satellite can be a "spare" in case the main satellite malfunctions, how can a satellite be both launched and in storage at the same time? artificial-satellite share | improve this question asked Aug 26 at 19:45 RonJohn 197 9 The geo graveyard belt orbital regime is valuable as a storage and disposal location for derelict satellite space debris after their useful economic life is completed as geosynchronous communication satellites. Artificial satellites are left in space because the economic cost of removing the debris would be high, and current pu