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Creation Date: 2002-04-26
As a physicist, it is my duty to inject ideas of important physics concepts

Experiment 6: Fresnel Experiment

Might I suggest a good look at these plots. This is a row of a digital picture taken by a CMOS digital of a laser being diffracted by a small slit. Light acts like a wave when it is around anything. But hitting something, it acts like a particle with momentum. Particles have momentum equal to their mass multiplied by their velocity. Light has no mass, but it moves at the speed of light, a finite value. In modern physics, we learn that light has momentum equal to h bar multiplied by the frequency of the light. Why do we believe these things? They are observed, calculated, tested, used, and proven beyond reasonable doubt. At that point, it's a theory (ie. Theory of Relativity). We wait until it is proven for certain before we call it a law (ie. Law of Thermodynamics). But until then, we use it and we work with it to prove and disprove other theories. Physics is a really active field these days and I'm happy to be working towards the cutting edge.

A few pseudo-scientists make untestable statements that belong to themselves, but they end up in online journals touted to be truth. One hot topic is the uncertainty principle. Proving it or disproving it would be a huge discovery. It's already been proven beyond current testability, but some challenge its merit before testing can be done. Let me tell you, before you tell me that you doubt the uncertainty principle or wave-particle duality of light, explain these pictures. Remember Occam's razor, too. No fanciful tale including princesses, Jedi, the NSA, or gnomes will be accepted as a reasonable answer for this repeatable experiment. Physics describes nature and the wave-particle duality of light is certainly explains the nature of light.

Run Number Data (.csv) GNUPlot (.plt) Picture (.png) Comments
Run 1 Data Plot Picture Not a needed data set.
Run 2 Data Plot Picture The correct data for diffraction calculation.
Run 3 Data Plot Picture Another unneeded set.
Run 4 Data Plot Picture Another unneeded set.
Run 5 Data Plot Picture A set that was said to be erraneous by the TA. Note that the "better" set has the same "error".
Run 6 Data Plot Picture The better set for the second experiment. See the plot with lines between each datapoint.



I went to Uwajimaya today and had a good lunch/dinner. It was cheap, so I'm happy. That book I ordered came in, so I bought that. Good surprise, it was only $10 instead of $20 like most are. How sweet, huh? Now I'm going to read it using the translation from the web. The web is cool for stuff like that. A person like me who can't read Japanese, let alone complex Kanji like in Gunnm would never get that chance without a full year or even two in college-level Japanese.

Today I was dizzy through all my classes. My midterm went better than I hoped, but still not very good. I'm such a basketcase, I forgot to get markers and transparencies for my presentation this thursday. I'll just draw them on the computer and get the transparencies Monday and print them. But the professor will think I'm more of a loser than he already does. ;_;

My housemate Leigh Ann and I have had two really good conversations about Daniel Quinn in the past week. She's taking this experimental ASUW class that is based on Ishmael and the Story of B. I was saying that the IMF doesn't sound so bad if they're loaning money to poor people in third world countries so that the poor producers can control the flow of supply. You see, In eight grade I read this thing about globalization and how the IMF loaned these peasant women rug makers enough money to hold back the supply when the demand was low so they could make more money when the demand was higher. The IMF is pretty much just giving these women free money. But Leigh Ann had a pretty good argument that giving third world countries money puts them into our culture, which is hardly the place for them to be. She explained how when she was in the Dominican Republic, she saw that the poor starving people are not poor. They have houses, food, a job, and a family. Going to a third world country hoping to save everyone with your college education is naive.

So my answer was, why don't we just leave these third world countries alone if they have such a good life compared to ours? Well, the first retort was that no one is an island. Current American culture cannot live without goods and services from overseas. My second answer was, why don't we just focus on our culture, then? If it's possible to make a new culture in America that is healthy, then we have half of our obligation met. The other half is helping others. Missionaries are really good at helping people locally and in select global positions, but more has to be done to help the global problems. Third world countries have good lives, but they don't have a good survival rate. They desperately need health care, but giving them a loan will not educate their children or allow them to buy doctors. It will make them work more hours for less pay with less life expectancy.

So my tough answer would be to make relations between our nation and others globally so that any good ideas we come up with or they come up with can be shared and enrichment can ensue. For example, we could trade educators between countries to share our inventions. Those countries that need health care can build a medical school and hospital and import a few doctors. Those countries that need engineers to build their vast cityscape with the highest safety and environmental standards can import engineers. I have to think about a practical way for this to happen, but it seems reasonable to me.

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