Highschool Vs. University Physics Be Like...

[mariorasso]

You never lose that feeling: even after a physics degree, you are exactly Billy for the most advanced topics and so on... You are fundamentally Billy your entire life

[gustavoD]

Now I know why Billy has changed for software engineering afterwards. 😂

[ManUser]

I love these videos. After having studied physics for almost 6 years now, I love remembering these vibes during my fourth and fifth semester. Probably the hardest time of your study (except for the first semester, which obviously only exists to sort out lazy students) when you attended the first quantum mechanics courses just after you were at war with classical mechanics and its weird concepts. It’s that point you felt like nothing makes sense anymore (at least I did).

[louisrobitaille]

To summarize:
High school gives you the equations where all variables are ideal.
University gives you the real equations. Since most cases are far from ideal, most of what you learned previously stops existing.
Basically, in high school you calculate forces and ignore air resistance, friction, etc. In uni, not only do you calculate those forces, you also take into account the fact that nothing is ever smooth and take into account all the variations. Welcome to quantum physics 😂.

[halfbakedproductions]

The problem with a lot of these professors is that they live on their own plane of existence, unable to understand why you don't understand. If that makes sense.

Had the same problems when studying CS.

[awemanyfit]

As a physics student whose courses are slowly transforming into these I can say I want my secondary school physics back

[drstrangecoin]

I am a PhD student who hasn't taken physics since hs. I am also mostly a computational scientist, but because my domain sometimes explains matter, I am just now finishing up a QM course this week.
My homework grade average is an 87 and my test average is a 60, because without a computer, I am just another Billy🦜.
Final exam is next week, lads. Here's hoping I pass. Thank you for posting a window to my soul, Mr. P Solver.

[EldhoseJoseph]

Evolution of maths :
Primary: 1+1=2
Billy : OK.. I get this.
High school : (2/6.5)*(5*(4/3)/0.85)
Billy : hmm... I can try it.
Senior: x+y=z
Billy : where the hell the numbers go?
Undergrad: *axioms, corollary, calculus*
Billy : Is this ancient Spanish?
Grad : Numarical analysis, complex analysis, topography..
Billy : Now we r contacting with Aliens? I m not playing it.
PhD : 1+1=2
Billy : finally someone understands it..
PhD : not finished it... Prove it... Prepare a thesis book proving it.
Billy :😱

[AndreRhineDavis]

When I learned this stuff, the physics lecturers didn't explain to us what was actually mathematically going on. That's the problem. They didn't explain to us what these things meant. What actually mathematically is a ket, or a bra, or an operator, and how do they work? It was only after studying the underlying mathematics of Hilbert spaces and everything on my own that I have developed a better understanding of it all.

Here's a trick that will make everything make a lot more sense: Think of kets as infinite dimensional column vectors, bras as infinite dimensional row vectors, and operators as infinite dimensional matrices. Now Dirac notation just becomes linear algebra pretty much :)

[mayararamosdelima]

As a sixth semester student who's just starting on regular QM but researching quantum entanglement, I find it so funny lol it's exactly like that, I'm billy all the way

[raja]

That was only linear momentum. There's also angular momentum.

[jasonpapadopoulos]

kind of specific for quantum mechanics, but overall spot on. Best vid in this series

[madarexxx]

Electrical engineering postgrad here :)
Did not understand much of the quantum math, but looks funny 🤣
In engineering we have even funnier 3-stage interaction:
1) school. Electricity is easy. Push the lever, current flows in wire, lamp flows. eZyYy.
2) Uni. ELECTRICITY DOES NOT FLOW ON WIRES, BUT ENERGY IS TRANSFERRED IN THE ELECTROMAGNETIC FIELD AROUND THE WIRE. And who cares about all this peasant stuff, here are your 2 years of special math for motor control. Motor only, not generator. Not power lines.
3) Work. Come here you mighty bachelor, we need you to make project documentations, write the whole paperwork, get things bought. Only to be crushed by interaction with actual modern technology, which is literally 40+ years newer then you have been teached.

And then you ask in uni, why don't we learn normal modern technology, since we have it in the lab. And you see only bragging like "we have designed schematics in 1981, nothing ever has changed, technology doesn't matter, math über alles.

[AnirbanDuttaasn]

Dude I am doing PhD in physics like yourself. This is funniest thing I have seen all week. Btw I also showed you math video to my students.

[louisrobitaille]

2:10 The best advice any teacher could give 😮. "Abandon your intuitions. Things don't make sense here." This is legit the easiest way to understand anything 😬. Stop expecting things to make sense. As Richard Feynmann once said: "if you think you understand quantum physics, then you don't understand quantum physics."

[vinvic]

Fantastic this meme perfectly captures the Dunning-Kruger curve that all physics students experience :) but we'll all get there in the end ! ... maybe

[DJay]

i love it how complex equations are like one line, with some innocent looking symbols, but if you unravel that shit and actually write down what each of these mean you end up with 2 pages of numbers stacked upon each other in a clusterfuck of matrixes, vectors, operators and other stupid shit and you basically have no idea what's going on anymore.
And the professor acts like he's explaining how spoons work, somehow knowing all that ridiculous math off the top of his head.

[migBdk]

"you speak another language, sir" well, to be fair many quantum physical terms come from German, like eigenvalue, eigenvector (just means "self-value", "self-vector") so he is partially speaking another language.

[jonathansilva]

As long as you get good at the mathematics BEFORE you use it in physics, it's really easy. If you are a little rusty on the mathematics you are using in a physics class, it becomes so immensely difficult.

[tkbots]

It’s crazy how it’s PRETTY MUCH the same but throw in different letters and symbols and we all have mental breakdowns 😂