As early as the 7th century B.C., people used simple magnifying glasses to concentrate the light of the sun into beams so hot they would cause wood to catch fire.
早在公元前7世纪,人们就利用简单的放大镜将阳光集成一束,利用热量点燃木材。
It takes an infrared view to catch the light from these shrouded regions and reveal the earliest stages of star formation.
要用红外光来从这些迷蒙的区域捕捉光并揭示造星的早期阶段。
You could catch a ball, hum a tune, stop at a red light - act exactly like a person but without any sense of what it is like to be alive.
你可以接住一个球,哼个小曲并可以在红灯前停下来—看起来就像所有有感觉的人一样,而事实上你的身体又没有任何感觉。
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