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有这样一位科学家,他总爱往裤兜里装各种石头,时间久了,裤兜被磨出了破洞。于是,他便有了个绰号—"破裤子"教授。他就是立志为祖国寻找和开发地下宝藏的中国地质科学奠基人之一,著名教育家、社会活动家李四光。他一生钻深山,下矿井,风餐露宿,在战火之中仍然冒着生命危险坚持考察。他将力学引入地质研究,开创了一门新的学科——地质力学。在这门新学科的理论指导下,我国先后发现了大庆油田、胜利油田,找到了制造原子弹、氢弹所需要的铀矿等很多矿藏,让中国成为世界上矿产资源