{"id":447,"date":"2017-05-17T10:13:00","date_gmt":"2017-05-17T08:13:00","guid":{"rendered":"https:\/\/kids.esa.int\/satnav_technology_could_save_precious_water\/"},"modified":"2026-10-08T00:28:19","modified_gmt":"2026-10-07T22:28:19","slug":"satnav_technology_could_save_precious_water","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/el\/satnav_technology_could_save_precious_water\/","title":{"rendered":"\u0397 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03c4\u03c9\u03bd \u03c3\u03c5\u03c3\u03c4\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03c0\u03bb\u03bf\u03ae\u03b3\u03b7\u03c3\u03b7\u03c2 \u03b8\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03c3\u03b5 \u03bd\u03b1 \u03b5\u03be\u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03ae\u03c3\u03b5\u03b9 \u03c0\u03bf\u03bb\u03cd\u03c4\u03b9\u03bc\u03bf \u03bd\u03b5\u03c1\u03cc"},"content":{"rendered":"<div class=\"lede\">\n<p>\u039c\u03b9\u03b1 \u03bf\u03bc\u03ac\u03b4\u03b1 \u03b1\u03b3\u03c1\u03bf\u03c4\u03ce\u03bd \u03c3\u03c4\u03b9\u03c2 \u0397\u03a0\u0391 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03b6\u03b5\u03b9 \u03ad\u03bd\u03b1 \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1: \u03b5\u03b4\u03ce \u03ba\u03b1\u03b9 \u03c0\u03bf\u03bb\u03bb\u03ac \u03c7\u03c1\u03cc\u03bd\u03b9\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03bc\u03b5\u03b3\u03ac\u03bb\u03b5\u03c2 \u03c0\u03bf\u03c3\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03bd\u03b5\u03c1\u03bf\u03cd \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03ba\u03b1\u03bb\u03bb\u03b9\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03c4\u03b5\u03c1\u03ac\u03c3\u03c4\u03b9\u03c9\u03bd \u03b5\u03ba\u03c4\u03ac\u03c3\u03b5\u03c9\u03bd, \u03b1\u03bb\u03bb\u03ac \u03c4\u03ce\u03c1\u03b1 \u03c4\u03b1 \u03b1\u03c0\u03bf\u03b8\u03ad\u03bc\u03b1\u03c4\u03b1 \u03bd\u03b5\u03c1\u03bf\u03cd \u03c4\u03bf\u03c5\u03c2 \u03b5\u03be\u03b1\u03bd\u03c4\u03bb\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9. \u0397 \u03bb\u03cd\u03c3\u03b7 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03c1\u03bf\u03ad\u03bb\u03b8\u03b5\u03b9 \u03b1\u03c0\u03cc \u03bc\u03b9\u03b1 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ad\u03ba\u03c5\u03c8\u03b5 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd ESA, \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03b8\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03c3\u03b5 \u03bd\u03b1 \u03c3\u03c5\u03bc\u03b2\u03ac\u03bb\u03b5\u03b9 \u03c3\u03c4\u03b7 \u03b4\u03b9\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b1\u03c0\u03bf\u03b8\u03b5\u03bc\u03ac\u03c4\u03c9\u03bd \u03bd\u03b5\u03c1\u03bf\u03cd, \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c0\u03b1\u03c1\u03ac\u03bb\u03bb\u03b7\u03bb\u03b1 \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03ba\u03b1\u03bb\u03bb\u03b9\u03ad\u03c1\u03b3\u03b5\u03b9\u03b5\u03c2 \u03b4\u03b5\u03bd \u03b8\u03b1 \u03c3\u03c4\u03b5\u03c1\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03bd\u03b5\u03c1\u03bf\u03cd!<\/p>\n<\/div>\n<p>\u0397 \u03b9\u03b4\u03ad\u03b1 \u03c0\u03c1\u03bf\u03ad\u03c1\u03c7\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03ad\u03bd\u03b1\u03bd \u03c0\u03c1\u03ce\u03b7\u03bd \u03c5\u03c0\u03ac\u03bb\u03bb\u03b7\u03bb\u03bf \u03c4\u03b7\u03c2 ESA, \u03c4\u03bf\u03bd \u03a7\u03b1\u03b2\u03b9\u03ad \u039c\u03b1\u03c1\u03c4\u03af. \u03a3\u03c5\u03bd\u03b5\u03b9\u03b4\u03b7\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b5 \u03cc\u03c4\u03b9 \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c7\u03c9\u03c1\u03ac\u03c6\u03b9\u03b1 \u03c0\u03bf\u03c4\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c5\u03c0\u03b5\u03c1\u03b2\u03bf\u03bb\u03b9\u03ba\u03ac, \u03ba\u03ac\u03c4\u03b9 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03bc\u03b5\u03b3\u03ac\u03bb\u03b7 \u03c3\u03c0\u03b1\u03c4\u03ac\u03bb\u03b7. \u0398\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03c3\u03b5 \u03bd\u03b1 \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03c4\u03c1\u03cc\u03c0\u03bf\u03c2 \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03bf\u03cd\u03bd \u03b4\u03bf\u03c1\u03c5\u03c6\u03cc\u03c1\u03bf\u03b9 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c0\u03b9\u03c3\u03c4\u03c9\u03b8\u03b5\u03af \u03c0\u03bf\u03b9\u03b1 \u03c7\u03c9\u03c1\u03ac\u03c6\u03b9\u03b1 \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03bd\u03b5\u03c1\u03cc; \u039f \u03a7\u03b1\u03b2\u03b9\u03ad \u03c0\u03b9\u03c3\u03c4\u03b5\u03cd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03bd\u03b1\u03b9!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1180\" data-credit=\"Google Earth\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/05\/Circular_fields_as_seen_from_space\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/05\/circular_fields_as_seen_from_space\/17903122-2-eng-GB\/Circular_fields_as_seen_from_space.jpg\" alt=\"Circular fields as seen from space\"><figcaption>\u039a\u03c5\u03ba\u03bb\u03b9\u03ba\u03ac \u03c0\u03b5\u03b4\u03af\u03b1 \u03cc\u03c0\u03c9\u03c2 \u03c6\u03b1\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1<\/figcaption><\/figure>\n<p>\u03a4\u03bf \u03ba\u03bb\u03b5\u03b9\u03b4\u03af \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b4\u03bf\u03c1\u03c5\u03c6\u03cc\u03c1\u03bf\u03c5\u03c2 \u03c0\u03bf\u03c5 \u03b2\u03c1\u03af\u03c3\u03ba\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03c4\u03c1\u03bf\u03c7\u03b9\u03ac \u03b3\u03cd\u03c1\u03c9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u0393\u03b7, \u03bf\u03b9 \u03bf\u03c0\u03bf\u03af\u03bf\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b2\u03bf\u03b7\u03b8\u03bf\u03cd\u03bd \u03c4\u03bf\u03c5\u03c2 \u03b1\u03bd\u03b8\u03c1\u03ce\u03c0\u03bf\u03c5\u03c2 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b1\u03bd\u03b1\u03c4\u03bf\u03bb\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03ad\u03c3\u03c9 \u03c3\u03c5\u03c3\u03c4\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03b4\u03bf\u03c1\u03c5\u03c6\u03bf\u03c1\u03b9\u03ba\u03ae\u03c2 \u03c0\u03bb\u03bf\u03ae\u03b3\u03b7\u03c3\u03b7\u03c2. \u0391\u03bd\u03b1\u03bb\u03cd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b1 \u03b1\u03bd\u03b1\u03ba\u03bb\u03ce\u03bc\u03b5\u03bd\u03b1 \u03c3\u03ae\u03bc\u03b1\u03c4\u03b1 \u03b4\u03bf\u03c1\u03c5\u03c6\u03bf\u03c1\u03b9\u03ba\u03ae\u03c2 \u03c0\u03bb\u03bf\u03ae\u03b3\u03b7\u03c3\u03b7\u03c2, \u03bf \u03a7\u03b1\u03b2\u03b9\u03ad\u03c1 \u03b1\u03bd\u03b1\u03ba\u03ac\u03bb\u03c5\u03c8\u03b5 \u03cc\u03c4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc \u03bd\u03b1 \u03bc\u03b5\u03c4\u03c1\u03b7\u03b8\u03b5\u03af \u03b7 \u03c0\u03bf\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bd\u03b5\u03c1\u03bf\u03cd \u03c0\u03bf\u03c5 \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03c3\u03c4\u03bf \u03ad\u03b4\u03b1\u03c6\u03bf\u03c2 \u03b1\u03c0\u03cc \u03ba\u03ac\u03c4\u03c9: \u03c3\u03c4\u03bf \u03c7\u03ce\u03bc\u03b1, \u03c3\u03c4\u03bf \u03c7\u03b9\u03cc\u03bd\u03b9, \u03c3\u03c4\u03bf\u03c5\u03c2 \u03c5\u03b3\u03c1\u03cc\u03c4\u03bf\u03c0\u03bf\u03c5\u03c2, \u03b1\u03ba\u03cc\u03bc\u03b7 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b9\u03c2 \u03c3\u03c4\u03ac\u03b8\u03bc\u03b5\u03c2 \u03bd\u03b5\u03c1\u03bf\u03cd \u03c4\u03c9\u03bd \u03b4\u03b5\u03be\u03b1\u03bc\u03b5\u03bd\u03ce\u03bd. \u0391\u03c5\u03c4\u03ac \u03c4\u03b1 \u03c3\u03ae\u03bc\u03b1\u03c4\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b1\u03c0\u03bf\u03ba\u03b1\u03bb\u03cd\u03c8\u03bf\u03c5\u03bd \u03c0\u03bf\u03b9\u03b1 \u03c7\u03c9\u03c1\u03ac\u03c6\u03b9\u03b1 \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c0\u03cc\u03c4\u03b9\u03c3\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03c0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03bd\u03c4\u03ac\u03be\u03b5\u03b9 \u03cc\u03c0\u03c9\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"Divirod\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/05\/Irrigation_systems_like_this_sprinkle_water_over_fields\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/05\/irrigation_systems_like_this_sprinkle_water_over_fields\/18248067-2-eng-GB\/Irrigation_systems_like_this_sprinkle_water_over_fields.jpg\" alt=\"Irrigation systems like this sprinkle water over fields\"><figcaption>\u03a3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03ac\u03c1\u03b4\u03b5\u03c5\u03c3\u03b7\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03b1\u03c5\u03c4\u03cc \u03c8\u03b5\u03ba\u03ac\u03b6\u03bf\u03c5\u03bd \u03bd\u03b5\u03c1\u03cc \u03c3\u03c4\u03b1 \u03c7\u03c9\u03c1\u03ac\u03c6\u03b9\u03b1<\/figcaption><\/figure>\n<p>\u03a4\u03bf\u03c5\u03c2 \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03bf\u03c5\u03c2 \u03bc\u03ae\u03bd\u03b5\u03c2, \u03b1\u03c1\u03ba\u03b5\u03c4\u03bf\u03af \u03b1\u03b3\u03c1\u03cc\u03c4\u03b5\u03c2 \u03b8\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03bf\u03c5\u03bd \u03b1\u03c5\u03c4\u03ac \u03c4\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c1\u03c5\u03b8\u03bc\u03af\u03c3\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03c0\u03bf\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bd\u03b5\u03c1\u03bf\u03cd \u03bc\u03b5 \u03c4\u03b7\u03bd \u03bf\u03c0\u03bf\u03af\u03b1 \u03c0\u03bf\u03c4\u03af\u03b6\u03bf\u03c5\u03bd \u03c4\u03b1 \u03c7\u03c9\u03c1\u03ac\u03c6\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2. \u0395\u03bb\u03c0\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03cc\u03c4\u03b9 \u03b1\u03c5\u03c4\u03ae \u03b7 \u03c0\u03b9\u03bf \u03b1\u03c0\u03bf\u03b4\u03bf\u03c4\u03b9\u03ba\u03ae \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b8\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b5\u03be\u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03ae\u03c3\u03b5\u03b9 30% \u03b1\u03c0\u03cc \u03c4\u03bf \u03bd\u03b5\u03c1\u03cc \u03c0\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03bd\u03b1\u03bb\u03ce\u03bd\u03bf\u03c5\u03bd \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2. \u0395\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd, \u03bf\u03b9 \u03ba\u03b1\u03bb\u03bb\u03b9\u03ad\u03c1\u03b3\u03b5\u03b9\u03b5\u03c2 \u03b5\u03bd\u03b4\u03ad\u03c7\u03b5\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03bd\u03b1\u03c0\u03c4\u03c5\u03c7\u03b8\u03bf\u03cd\u03bd \u03b1\u03ba\u03cc\u03bc\u03b1 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03b8\u03b1 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b9\u03b4\u03b1\u03bd\u03b9\u03ba\u03ae \u03c0\u03bf\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bd\u03b5\u03c1\u03bf\u03cd!<\/p>\n<p>\u0391\u03bd \u03b7 \u03b9\u03b4\u03ad\u03b1 \u03c4\u03bf\u03c5 \u03a7\u03b1\u03b2\u03b9\u03ad\u03c1 \u03b1\u03c0\u03bf\u03b4\u03b5\u03b9\u03c7\u03b8\u03b5\u03af \u03b5\u03c0\u03b9\u03c4\u03c5\u03c7\u03ae\u03c2, \u03b8\u03b1 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\u03c4\u03c9\u03bd \u03b1\u03bd\u03b1\u03ba\u03bb\u03ce\u03bc\u03b5\u03bd\u03c9\u03bd \u03c3\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03c4\u03c9\u03bd \u03c3\u03c5\u03c3\u03c4\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03c0\u03bb\u03bf\u03ae\u03b3\u03b7\u03c3\u03b7\u03c2 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03bc\u03b9\u03b1 \u03c0\u03c1\u03c9\u03c4\u03bf\u03c0\u03bf\u03c1\u03b9\u03b1\u03ba\u03ae \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03b1 \u03c7\u03c1\u03cc\u03bd\u03b9\u03b1 \u03b5\u03bd\u03b4\u03ad\u03c7\u03b5\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03b4\u03bf\u03cd\u03bc\u03b5 \u03c0\u03bf\u03bb\u03bb\u03ad\u03c2 \u03b1\u03ba\u03cc\u03bc\u03b7 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c4\u03b7\u03c2!<\/p>","protected":false},"excerpt":{"rendered":"<p>A group of farmers in the USA have a problem: for many years they have been using large amounts of water to grow crops in huge 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