What does this quote mean in Catcher in the Rye The first thing I did when I got off at Penn Station, I went into this phone booth. I felt like giving somebody a buzz but as soon as I was inside, I couldn't think of anybody to call up. My brother D. B. was in Hollywood.

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theres no poem include that

the direction of the magnetic field produced by an electric current will change when the direction of the electric current changes. for example : if a current is flowing in a straight length of wire, the magnetic field is described by a concentric circle (using right-hand rule).

the speaker versus the boy.