小仓诚。土屋浩。中山睦氯化橡胶的制法。

Tsuchiya. Hiroshi. Kokura Preparation process of chlorinated rubber.

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。

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.