modern optics

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Failing 4 final-year University students.

First 2 paragraphs are a bit of backstory , real pro revenge story starts from paragraph 3.

So I’m on my final year - final semester for an electrical engineering degree. I had completed all my major subjects, however, 5 of us 4th year students hadn’t done Physics 2 since the first semester. Physics 2 is a 1st year subject divided into 3 modules (electricity , optics , modern physics) , but it surprisingly wasn’t a pre-requisite for any other subject. However , we needed to take it now to graduate.

Being 4th year students , we barely went to any lecture or did any coursework since it was a 1st year subject which we didn’t take seriously. The first module was electricity and magnetism, for which all the other 4 idiots failed and I did pretty well. In the second module , the other 4 students just barely passed. We are now approaching the final exam in 2 weeks. Here is where the pro revenge story begins!

For the entire physics course , the labs weigh 35% of the actual grade. There are 9 experiments in total , and we have to submit the lab report of all 9 reports at the end of the semester. I had 4 other final year students in my group., and not ONE of them would ever help out during experiments. I would literally do the entire lab alone and they would pretend to work whenever the instructor passed by. You know what? It doesn’t bother me. Sometimes, while I’m working on an experiment , one of them would poke me , or slap the back of my head as a joke. Still doesn’t bother me much, I can “laugh” it off, whatever. BUT, what gets to me, is that after 9 weeks of you guys slacking , you message me to complete all the lab reports BY MYSELF and refuse to work , telling me, “you didn’t let us help you , so we don’t know what to do.”

Oh that got to me. I gave you guys a simple task of just plotting graphs with the different data that I had already collected. And you refused to do it. Last week was the final day for submission for all the labs. I didn’t submit a single one. Today we all got a 0% out of 35% for the lab components where,

Labs - 35% Module 1 exam - 20% Module 2 exam - 15% Module 3 exam - 15% Quizzes - 15%

The beauty of this , is that even though I lost 35% , I can still pass. They can’t.
The subject is offered only once per year. In order to graduate now, they have to wait an entire year.

I’ve never made much progress in developing my diffraction/double slit experiment sculpture idea specifically even though it’s way old ‘cause, well, you try drawing this shit in 3D.
Anyway, working on a janky mock up like I did with the Hot Wheel coupled oscillators hot mess, just because trying to draw it has been such a road block. That, and diffraction/the double slit experiment is one of those things where, y'know, I know what happens, but I still don’t fully get it, so modeling it in some way, doesn’t matter how, is a chance for me to finally figure it out for myself in a hands-on way. The mock up is going to involve a balsa/basswood frame on 5 ½" lil legs that I’m gonna stretch an overhead transparency over. I’ll have drawn up all the wave fronts w/ lines drawn radially outward from the slit at equal angles (equidistant angles? equi-angles? equiangular? something? how does math work, and how do you do words?), and I’ll punch holes where they intersect and then I'mma wave some wire through the holes and then shape them to be the z component of my 3D waves. Oh, and then on the long edge of the frame opposite the sides w/ the “slits”, I’m going to draw the ol’ fringe pattern. The real version will have the waves printed in their 3D wave front version in some kind of transparent colored plastic, transparent so you can see where they intersect, that’s attached to a piece of plexiglass serving as the 2D equilibrium plane or w/e. But figuring out how to print this shit in two colors with all the intersecting parts and multiple piece and just IDK IDK IDK no one cares about the deets of how I’m gonna make it, all that really matters is that
1.  A physical, 3D model of the double slit experiment/diffraction exists because the world really fucking needs one, this shit is hard, and

2. We all stop to appreciate the picture the picture hanging in my bathroom where one of our mirrors is missing for a minute, since because ~the double slit experiment~: a lesbian porno featuring two female physicists.

External image

3. My precious baby babby kitten Niels Bohr is doing his ~BiG sCaRy HaLlOwEeN cAt~ thing all around my living room right now and I can’t stop laughing because it’s hysterical and also I can’t stop listening to “Super Trouper” by ABBA today because it’s perfection on earth just fyi