“Surely You’re Joking, Mr. Feynman”: Adventures of a Curious Character

You know what the result was, naturally. Now they couldn’t wait for the regular hour, They all had to sit upstairs in my lab with this little creaky radio for half an hour, listening to the Eno Crime Club from Schenectady.

We lived at that time in a big house; it was left by my grandfather to his children, and they didn’t have much money aside from the house. It was a very large, wooden house, and I would run wires all around the outside, and had plugs in all the rooms, so I could always listen to my radios, which were upstairs in my lab. I also had a loudspeaker—not the whole speaker, but the part without the big horn on it.

One day, when I had my earphones on, I connected them to the loudspeaker, and I discovered something: I put my finger in the speaker and I could hear it in the earphones; I scratched the speaker and I’d hear it in the earphones. So I discovered that the speaker could act like a microphone, and you didn’t even need any batteries. At school we were talking about Alexander Graham Bell, so I gave a demonstration of the speaker and the earphones. I didn’t know it at the time, but I think it was the type of telephone he originally used.

So now I had a microphone, and I could broadcast from upstairs to downstairs, and from downstairs to upstairs, using the amplifiers of my rummage-sale radios. At that time my sister Joan, who was nine years younger than I was, must have been about two or three, and there was a guy on the radio called Uncle Don that she liked to listen to. He’d sing little songs about “good children,” and so on, and he’d read cards sent in by parents telling that “Mary So-and-so is having a birthday this Saturday at 25 Flatbush Avenue.”

One day my cousin Francis and I sat Joan down and said that there was a special program she should listen to. Then we ran upstairs and we started to broadcast: “This is Uncle Don. We know a very nice little girl named Joan who lives on New Broadway; she’s got a birthday coming—not today, but such-and-such. She’s a cute girl.” We sang a little song, and then we made music: “Deedle leet deet, doodle doodle loot doot; deedle deedle leet, doodle loot doot doo We went through the whole deal, and then we came downstairs: “How was it? Did you like the program?”

“It was good,” she said, “but why did you make the music with your mouth?”

One day I got a telephone call: “Mister, are you Richard Feynman?”

“Yes.”

“This is a hotel. We have a radio that doesn’t work, and would like it repaired. We understand you might be able to do something about it.”

“But I’m only a little boy,” I said. “I don’t know how—”

“Yes, we know that, but we’d like you to come over anyway.”

It was a hotel that my aunt was running, but I didn’t know that. I went over there with—they still tell the story—a big screwdriver in my back pocket. Well, I was small, so any screwdriver looked big in my back pocket.

I went up to the radio and tried to fix it. I didn’t know anything about it, but there was also a handyman at the hotel, and either he noticed, or I noticed, a loose knob on the rheostat—to turn up the volume—so that it wasn’t turning the shaft. He went off and filed something, and fixed it up so it worked.

The next radio I tried to fix didn’t work at all. That was easy: it wasn’t plugged in right. As the repair jobs got more and more complicated, I got better and better, and more elaborate. I bought myself a milliammeter in New York and converted it into a voltmeter that had different scales on it by using the right lengths (which I calculated) of very fine copper wire. It wasn’t very accurate, but it was good enough to tell whether things were in the right ballpark at different connections in those radio sets.

The main reason people hired me was the Depression. They didn’t have any money to fix their radios, and they’d hear about this kid who would do it for less. So I’d climb on roofs to fix antennas, and all kinds of stuff. I got a series of lessons of ever-increasing difficulty. Ultimately I got some job like converting a DC set into an AC set, and it was very hard to keep the hum from going through the system, and I didn’t build it quite right. I shouldn’t have bitten that one off, but I didn’t know.

One job was really sensational. I was working at the time for a printer, and a man who knew that printer knew I was trying to get jobs fixing radios, so he sent a fellow around to the print shop to pick me up. The guy is obviously poor—his car is a complete wreck—and we go to his house which is in a cheap part of town. On the way, I say, “What’s the trouble with the radio?”

He says, “When I turn it on it makes a noise, and after a while the noise stops and everything’s all right, but I don’t like the noise at the beginning.”

I think to myself: “What the hell! If he hasn’t got any money, you’d think he could stand a little noise for a while.”