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你能解決吸血鬼獵人的難題嗎?
3,237,812 views |
丹 · 芬克爾 |
TED-Ed
• January 2019
Read transcript
課程網址:https://ed.ted.com/lessons/can-you-solve-the-vampire-hunter-riddle-dan-finkel 你已經偷偷地潛入了吸血鬼的黑暗洞口,把一面一面的鏡子按角度架起來。當外面的太陽冉冉升起的時候,一束陽光會被鏡子折射到洞內,打到你準備好的聚光燈上,然後就可以照亮吸血鬼們睡覺的大堂。你能成功的把聚光燈放到正確的位置上,從而殺死吸血鬼嗎?丹 · 芬克爾來教你解析此題!
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