Aside from completing the solar tower and working on the first earth-bag dome, the tribe members visited the local school in John Obey village to teach an impromptu geography lesson.
除了完成太阳能供电系统，建造第一座土屋，部族成员参观了约翰。欧贝村的学校，并在课堂上即兴给孩子们上了一堂地理课。
The Great Pyramids of Giza, sphinx included, joined world landmarks such as the Athens Acropolis, the Eiffel Tower, and San Francisco's Golden Gate Bridge in going dark for Earth Hour 2009.
吉萨大金字塔以及狮身人面像在2009年的地球一小时活动中熄灯变暗，其他世界性的地标建筑物如雅典卫城、艾菲尔铁塔和旧金山金门大桥都加入了熄灯行列。
The electricity conduct to earth from the base of tower and copper cable.
雷电流通过塔架和铜缆经基础接地传到大地中。
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