Tag Archives: Interference

The Girl and the Physics Experiment

So I was at the beach last week with a friend of mine.  It was a beach with a strange wave phenomenom. The waves come in at an angle, and then they bounce off the jetty, and then remerge with themselves. Its kind of like an interference pattern in physics.  The cool part is that the beach comes up really fast under the water, and when the waves rejoin themselves, they double in size, and at the same time, they come up on a beach that gets really shallow, really quickly, so the waves are able to transform their energy to produce this instantly huge and rideable wave.  Most people there don’t surf with boards, rather, they body surf. Because the waves come up and crash onto sand so quickly, it’s too hard to bail out if you have too much junk tied around your ankle. And we were watching this one guy, bobbing around in the water, and it didn’t really look like he knew what he was doing. Suddenly a wave pulled him up, and it looked like he was going to be pitched onto the sand. I looked around to see if there were any ambulances on hand, as people have been known to break their necks here.

Then my friend starts telling about this guy that he knows. It seems he really likes this girl, but he just can’t get up the nerve to go and talk to her.  He said that whenever he sees her, he can think of good things that he wants to say, but when he gets close, he starts to imagine all the bad things that might happen, and those overpower the good things. In his mind, at least. So I say, “Well, next time you see this guy, why don’t you..” and then my friend interrupts me, and says that he hasn’t seen this guy in like two months. And I say “Oh, so he’s one of THOSE kinds of friends.” And my friend nods and says “Yea. Low maintenance.”

Like the kind of person that you can go for three or four years with out seeing this person, and then next time you happen to bump into them, you are able to instantly remember good times, like you just got off the phone, chatting and talking about remembering good experiences. And then when you see them, you can just pick up where you left off, and everything is cool. And my friend said, “yea, just like that.”  So I asked him if he knew or had met the girl, and he said he did, and I said “so is she cool?” And he said “Yea, she’s totally cool.” “So it’s all in his head?” “Yea, it’s all in his head.” And I suggested that maybe he should just relax. Because I’m sure you know that good things happen when you stay out of your own way.

So anyways, the guy takes off on the wave, and it instantly becomes clear that not only does the guy know what he’s doing, because he expertly barrel rolled himself out just at the right moment, but it turned out he was the guy we’d been talking about. And right after a great ride, he came up to his spot on the beach where his girlfriend, apparantly, was waiting. “Is that her?” “Wow, yea it is,” he said with a chuckle. He waved, she waved, then I waved. Then we went and got some tacos, which is another story.

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