For instance, in the entrance to the "Path of Evolution," there is a 2.7-meter-wide, seven-meter-high windmill, whose conical blades can generate power even from the light breezes in the city. It demonstrates one of the oldest of humanity's power sources: Mother Nature's wind. Today, when we are facing dwindling oil supplies, it has a special significance.
像是在生命演化史的步道入口，設立了一座直徑約 2.7 公尺、底座高達 7 公尺的「錐翼風車」，選用在都市微風中就可以旋轉發電的錐形葉片，來展現人類最古老的動力之一──自然風力，在目前石油耗竭的恐慌中特別有意義。