VOA慢速英语:New Camera Takes Billions of Pictures Every Second

astronomy – n. the scientific study of stars, planets, and other objects in outer space

optical – adj. relating to or using light

cloak – v. to hide or disguise something

molecule – n. the smallest possible amount of a particular substance that has all the characteristics of that substance

technique – n. a way of doing something by using special knowledge or skill

What would you photograph with such a camera? What inventions have you read about in science fiction books or seen on television programs or in movies about the future that you would like to use? We want to hear from you. Write to us in the comments section.