你能解出寺廟之謎嗎? – 丹尼斯 E. 沙沙

查看完整課程: http://ed.ted.com/lessons/can-you-solve-the-temple-riddle-dennis-e-shasha

Your expedition finally stands at the heart of the ancient temple. But as you study the inscriptions in the darkness, two wisps of green smoke burst forth. The walls begin to shake. The giant sandglass begins flowing with less than an hour before it empties, and a rumbling tells you that you don’t want to be around when that happens. Can you use math to escape the temple? 丹尼斯 E. Shasha shows how.

Lesson by Dennis E. 沙沙, animation by Artrake Studio.