The simple Mr Feynman


Richard Phillips Feynman was co-awarded the Nobel prize for Physics in 1965 for successfully resolving problems related to the theory of quantum electrodynamics.  No, I’m not sure what that means either. If that was not enough he also helped build the atom bomb, being part of the Manhattan project, and following the Challenger explosion on January 28, 1986 he was the person largely credited with figuring out why it happened.

In fact, Richard Feynman is widely considered to be one of the greatest and most influential theoretical physicists in history. His physics lectures have become world famous. Here is one on the Law of Gravitation.

“I’m smart enough to know that I’m dumb.”

Richard Feynman

He was intensely curious and believed that unless you could explain a concept or idea in simple terms you really didn’t understand it. In this clip Feynman was asked by his father to explain where a photon comes from – listen for his metaphor.

The Feynman technique

Richard Feynman was worried that a lot of people thought they knew something when in fact they only had a superficial grasp of the subject matter.

“You can know the name of that bird in all the languages of the world, but when you’re finished, you’ll know absolutely nothing whatever about the bird. You’ll only know about humans in different places, and what they call the bird… I learned very early the difference between knowing the name of something and knowing something.”

Richard P. Feynman

Such was his concern that he created a process to help take an individual’s knowledge to a far deeper and more fundamental level, it’s called the Feynman Technique.

Step 1: Take a sheet of paper and write the name of the concept, topic or subject you would like to learn.

Step 2: Explain the concept in your own words as if you were teaching someone else – see also Protege effect.  Imagine your pupil is a small child, this will help focus your mind on plain, simple language. Don’t limit your explanation to definitions or overviews, challenge yourself, and include lots of examples, which as mentioned in earlier blogs is a great way of making sure you have understood it.

Step 3: Review your explanation and identify the gaps. These might be areas where you simply didn’t have the necessary knowledge or your explanation was weak. Once you have done this go back to your notes or textbook, re-learn the subject matter and add what you have learned to your sheet of paper, then repeat step 2.

“The first person you should be careful not to fool is yourself. Because you are the easiest person to fool”.”

 Richard Feynman

Step 4: Review again and remove technical or overly complex terms, think, “how can I say this more simply?” Also put your notes into an order that flows easily, this might involve rewriting large sections and even starting again with a clean piece of paper, but thats all part of the process. One final tip, as with step 2, it often helps to read out loud.

And that’s it!

I am not saying that if you follow this technique you will win a Nobel prize or be able to play the bongos, another skill that Feynman was famous for, but it will certainly deepen your understanding of the subject, and that’s not a bad start is it!

Richard Feynman: “The Great Explainer” click for an interesting  10-minute summary of his career in science.


One thought on “The simple Mr Feynman

  1. His(sort of) autobiography is worth a read Surely You’re Joking, Mr. Feynman: Adventures of a Curious Character.
    Here is what others think:
    “There are two types of genius. Ordinary geniuses do great things, but they leave you room to believe that you could do the same if only you worked hard enough. Then there are magicians, and you can have no idea how they do it. Feynman was a magician” (Hans Bethe, theoretical physicist and Nobel laureate)

    “A storyteller in the tradition of Mark Twain. He proves once again that it is possible to laugh out loud and scratch your head at the same time” (New York Times Book Review)

    “Quintessential Feynman – funny, brilliant, bawdy…enormously entertaining” (New Yorker)

    “Buzzes with energy, anecdote and life. It almost makes you want to become a physicist” (Science Digest)


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