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There were 183 of us freshmen, and a bowling ball hanging from the three-story ceiling to just above the floor. Feynman walked in and, without a word, grabbed the ball and backed against the wall with the ball touching his nose. He let go, and the ball swung slowly 60 feet across the room and back - stopping naturally just short of crushing his face. Then he took the ball again, stepped forward, and said: 'I wanted to show you that I believe in what I'm going to teach you over the next two years.'

Richard Feynman#94

PhysicsEducationTeachingTrust

About this quote

What does it mean?
A physics teacher demonstrates trust in physical laws by risking his safety with a pendulum. This builds confidence in the course material.
In plain terms
The teacher used a pendulum to show he trusted physics.
What can you take from it?
Show belief in principles through action.

Where it applies

  • classroom
  • training
  • presentation

Putting it to work

  • teaching physics
  • building trust
  • demonstrating

Questions to consider

  • How do you prove your point?
  • When did you trust the science?

Another view

Not every teacher can use physical stunts to teach.

More from Richard Feynman

  1. Richard Feynman became so exasperated [at the National Academy of Sciences] that he resigned his membership, saying that he saw no point in belonging to an org…

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  2. He is a second Dirac. Only this time human.

    Permalink to quote #95
  3. Several conversations that Feynman and I had involved the remarkable abilities of other physicists. In one of these conversations, I remarked to Feynman that I…

    Permalink to quote #92

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