Joshua Harvey: 人眼的演進 - 約書亞哈維

人眼的演進 - 約書亞哈維

查看完整的影片：http://ed.ted.com/lessons/the-evolution-of-the-human-eye-joshua-harvey

人類的眼睛是一個了不起的機制，能夠檢測任何位置，小到幾個光子，大到直射的陽光，而且能在三分之一秒內把焦點從你面前的屏幕切换到遙遠的地平線。這些複雜的結構是怎麼發展？約書亞哈維詳細介紹了人眼5億年的故事。


內容由Joshua哈維，動畫由Artrake工作室製作。










The human eye can shift focus from a screen to the horizon in just a third of a second and detect everything from faint photons to blazing sunlight. Its evolution began with a simple light-sensitive spot in single-celled organisms over 500 million years ago. Through incremental changes—like the development of a lens and the support of the brain—these primitive structures became the complex eyes we have today. Even now, remnants of this stepwise evolution, like our inverted retina and blind spot, are visible in the human eye.