MediaWiki API result

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        "gapcontinue": "Recycling_Rocket_Exhaust_Presented_at_Mare_Cognitum_Chapter_Meeting",
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    "warnings": {
        "main": {
            "*": "Subscribe to the mediawiki-api-announce mailing list at <https://lists.wikimedia.org/mailman/listinfo/mediawiki-api-announce> for notice of API deprecations and breaking changes."
        },
        "revisions": {
            "*": "Because \"rvslots\" was not specified, a legacy format has been used for the output. This format is deprecated, and in the future the new format will always be used."
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    "query": {
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            "4787": {
                "pageid": 4787,
                "ns": 0,
                "title": "Reactionless Thrust Station Keeping at L2",
                "revisions": [
                    {
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                        "*": "* The [[GFDL:Lagrangian point|L2]] point is defined for two bodies in circular orbit about each other.  The sun-Earth and Earth-Luna systems do not exactly match the definition, but they come close enough that the model is a useful model.  Calculations<sup>[1]</sup> put the Earth-Luna L2 point at 64500 km beyond Luna's center.  If masses are depended from this point along a line connecting the centers of mass of Luna and Earth, one depended away from Luna and one toward Luna, these masses can be adjusted to provide thrust toward or away from Luna.  If one mass is depended by tidal force to 5.25*10^7 meters from Luna's center and another depended by tidal force to 7.65*10^7 meters, then when these masses are both reeled in 2*10^6 meters toward L2 the forces needed to move the masses are balanced and the net acceleration on the system changes by an 8% of the previous acceleration on the depended masses directed upward.  This force results because the rate change of gravitational intensity per meter change in altitude is greater for the mass hung closer to Luna than it is for the mass hung farther from Luna.  By combination with a pair of angular rate control wheels at L2 this can provide all of the stationkeeping needed by a satellite at L2. \n\n* In this concept there is no reaction mass expended from the station at L2, but there is an immeasurably small reaction in the moon to which the station is coupled by gravitational force.  The station keeping thrust results from the change in the strength of the gravitational coupling by changing the geometry of the station.\n\n*Reference \n:1. calculations by Farred as shown in discussion section \n\n[[category:Infrastructures]]"
                    }
                ]
            },
            "3030": {
                "pageid": 3030,
                "ns": 0,
                "title": "Rectenna",
                "revisions": [
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                        "*": "A Rectenna is a \"Receiving Antenna\" which converts [[RF radiation]] into [[electrical power]]. \n\nThey would be a fundamental component of [[Solar Power Satellite]] systems. \n\nThe SPS rectenna can sited almost anywhere, but although the [[microwave]] radiation at low levels is harmless, public fear of microwave radiation exposure might cause them to be sited in remote areas. \n\nOne interesting site might be the Chernobyl Zone of Alienation, an uninhabited radioactive area surrounding the Chernobyl [[nuclear reactor]] in the Ukraine which sprayed lethal radiation over a large area in 1986. \n\nThis is zone is patrolled by the Ukrainian state security service to make sure that no unauthorized people enter, getting entry permits is possible but difficult. Yet the area is close to large population centers, and large industrial consumers of electric power. Also, it was a major hub for [[electricity]] distribution, from the reactor. So infrastructure already exists to connect a rectenna directly to the Ukranian power gird. \n\nThe central hot zone has a radius of 30 kilometres, which is large enough to accommodate several SPS rectennas, with potential for tens of gigawatts of power delivery. \n\nOther sites: \n\nThere are other sites of nuclear tests and disasters which might be suitable. For example, Kazakhstan had some nuclear test sites, also in Nevada USA. \nA big Soviet nuclear waste dump in the Urals exploded in the 1960s, that is another large exclusion zone. \n\n*[[September 29]], [[1957]]: At [[Kyshtym]] in the Soviet Urals. Kyshtym is near the [[Chelyabinsk-40]] nuclear complex, also known as \"[[Mayak]]\" (\"beacon\" in Russian), where on 29th September, 1957, a violent explosion involving dry nitrate and acetate salts in a waste tank containing highly radioactive waste, contaminated an area later called the \"Kyshtym footprint\". The explosion resulted from a failure of the cooling system of the tank<ref>[http://www.american.edu/projects/mandala/TED/ural.htm Kyshtym accident]</ref>. About 800 km\u00b2 of land were taken out of use, and 82% of this area has now been taken into use again for forestry and farming.\n \n\n==References==\n<references/>\n\n[[Category:Hardware]] \n[[Category:Hardware Plans]] \n[[Category:Business]] \n[[Category:Power Supply]] \n[[Category:Urban Planning]] \n[[Category:Electrical Specifications]] \n[[Category:Power Grid Specifications]] \n[[Category:Alternating Current Specifications]] \n[[Category:Standards Proposals]] \n[[Category:Civil Engineering]]"
                    }
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