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你能解决吸血鬼猎人的难题吗？- 丹 · 芬克尔
3,246,723 views |
丹 · 芬克尔 |
TED-Ed
• January 2019
Read transcript
观看完整课程：https://ed.ted.com/lessons/can-you-solve-the-vampire-hunter-riddle-dan-finkel 你已经偷偷地潜入了吸血鬼的黑暗洞口，把一面一面的镜子按角度架起来。当外面的太阳升起到一定角度的时候，一束阳光会被镜子折射到洞内，打到你准备好的聚光灯上，然后就可以照亮吸血鬼们睡觉的大堂。你能成功的把聚光灯放到正确的位置上从而杀死吸血鬼吗？丹 · 芬克尔来教你解析此题！ 课程讲解：丹·芬克尔，视频制作：阿塔克工作室。
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