Imaging at a trillion frames per second | Ramesh Raskar

Important Vocabulary Words From The Video


A trillionth of something is a very small amount. To say that something is a trillionth of something is to say that it is very, very small.

  • The car is a trillionth of a mile away.
  • The number of stars in the sky is a trillionth of a million.

Computationally means using computers to do something. Sometimes you can say that something is computationally difficult to do.

  • The task is computationally difficult, because the computer is not able to handle the task very quickly.
  • The task is computationally easy, because the computer can handle the task quickly.

An endoscope is a type of medical instrument that is inserted through the mouth and into the stomach or intestines. It is used to examine the inside of the body.

  • The endoscope is used to look for problems with the stomach.
  • The endoscope is used to look for problems with the intestines.

Visualizations are pictures or thoughts that you create in your mind. They can be helpful in reducing stress or anxiety, or in developing positive thoughts.

  • Visualizations can help you achieve your goals.
  • Visualizations can also help you relax and get to sleep.

To obsess is to focus all of your attention on something, to become very focused on it. When you obsess about something, you are constantly thinking about it, and you are not able to focus on anything else.

  • He obsesses about his work all the time.
  • She obsesses about her weight, and she can't stop thinking about it.